If jt’s whack, who cares? Who said you get to decide “what the point of chess is”? It’s a rule, play by the rules.
Flaggers
They may be trying for a win on time.
They may be hoping that you will make a time pressure blunder that allows them to win over the board.
They may be hoping that you will offer a draw (to avoid a time loss) and they will accept it. People have sometimes complained when a crushed opponent makes a draw offer (for reasons ranging from presumption to trying to chew up the other person's time).
They may have instructions from their parent/coach to always play the game out and never resign.

most if not all of my wins in blitz today were from flagging. Not spectacular chess, I know, but what else can I do when it’s finals week

You have poor time management. It doesn't matter if its "just a few seconds," you managed your time poorly and lost because of it.
Either play with slower time controls, get better at the game, stick to daily or give up entirely.

I read once that if you have a forced checkmate on the board and you flag that it counts as a win. Any experts here on that matter? Would like to know. (talking about real life chess)
I read once that if you have a forced checkmate on the board and you flag that it counts as a win. Any experts here on that matter? Would like to know. (talking about real life chess)
No.
Having a forced mate doesn't mean you will see it.
US Chess has an emergency rule (18G2) when an arbiter has to adjudicate a game (generally used when a losing player essentially abandons a position) and the adjudication is supposed to be based on best play, but that is virtually always only done at the request of the player that did not abandon the game and if the position is drawish or losing then the player will wait to win on time.
If the only result you can reach (for all combinations of the remaining possible legal moves) is a mate against your opponent (call it an inevitable checkmate rather than a forced checkmate) then after you flag both FIDE and US Chess will deem it a draw (Chess.com may or may not based on the pieces). The same holds true if some of those possible results is a draw but no possible result involves you getting checkmated.
Please show me where do the chess rules talk about things like "absolutely crushed" and "neck and neck". Please show me where do the rules define the difference between bullet and other time controls.
You still don't get a very simple fact - chess as a game is defined by its rules and not by how you see it.

You are not even able to make a good analogy. You analogy doesn't hold because it's a consensus in chess community that winning on time is fine, no matter what's the position on board. It's not a question of etiquette, morals etc.
It's none of your business to tell others how to play and when to resign. It's arrogant and rude to call them "indecent" and "poor sports" when they do nothing wrong. I think you should apologize. In the meantime I have reported you officially for "Verbal Abuse / Cursing / Trolling".

It’s a better use of those 5 seconds, anyway.

Your literally saying I don't want to play long games because there too long and I don't want to play quick games because they are too quick and I don't play rapid or talk about it because I don't want to be proven wrong.


It's weird he pick and chooses but never answers the real question, which goes to show he is either trolling or simply trying to justify his butthurtness for being flagged (justifiably-ish, it can be tilting) and convince others he "morally earned that win", but i'll ask again, jffs
If my move or sequence of moves caused you to waste most of your allotted time, even if in theory it wasn't the best moves, in practical terms it was a great move considering i'm not too much worse... (GMs do that all the time, playing moves that are not necessarily the best but they cause practical problems) so should I resign because you are slow?? If you can't checkmate me "in a much better position" with the time we both had and agreed upon before starting, then maybe you don't deserve win... why would you? Slow time is high chance of blunder, if instead of the bishop it was a knight for example you could fall for a tactic (as you said "chess is tactic, strategy, etc") and get royally forked and lose the queen... Your position is only better because you spent more time, but people blunder in time trouble all the time, including classical chess... look it up you'll see a lot of deciding errors happening around move 30-40 before time control... after all... isn't playing fast and getting your opponent into time trouble so you blunder a "strategy"?)
Wait until you get dirty flagged, when you're low on time and pre-moving and your opponent just offers a whole rook and you don't capture 'cause you pre-moved your king and he takes your rook (or something like that) - I would love to see your reaction...
just take it easy, enable pre-moves and learn how to flag you'll see is even more satisfying then a double rook queen sac smothered mate... that's the beauty of blitz
or ask your opponent if you can have time odds - almost no shame in that

That is an awful analogy, and doesn't even remotely resemble the situation we're talking about.
A good analogy would be a team running out the clock so they can win, rather than giving the other side a chance.
You're bad at this. Just hold your L quietly, dude.

The games I’m talking about are not people creating difficult decisions for me where I’m wasting a bunch of time. Did you read my comments? I’m talking about people that make nonsensical moves as quickly as possible to run your clock out because their position is lost. They’re not playing smart and making me think, it’s simply about pre-moves so my clock runs out. I also said before, it’s not like they have a significant amount of time more than me, it’s like a couple seconds. I also said before that I’m not talking about bullet. If someone flags me but they had 30 to 60 seconds more than me, then they earned that. It’s when it comes down to the wire and this person is in a lost position. I am expressing my frustration with people like that. Does that make sense?
Play a time control you like where you can still play what you consider to be chess. 5+5 is my personal limit.