Why do all the 900 to 1000 blitz play at 1500 to 1700 strength?
like I said report it, I don't cheat and never have I play inconsistently I lose due to weak strength in fast games.
very rarely do I encounter 900 blitz who play as their elo suggests. Often its best move nearly every move and sometimes with a three great moves or brilliant thrown in.... Outside help? Tons of experienced players??? Seems really strange imo.
You are seeing ghosts. The great moves come as a result of you making sub-optimal moves first.

Another forum to fight publicly instead of cursing at each other quietly in dm
Or just report and block each other and keep living
your not wrong, but you kinda just described chess as a whole.
In that case why do you think your games are an exception? Players of at any rating happen to play hundreds of points above their rating occasionally, you are not an exception either, if you analyse all your wins you will see such games too.

As for me, I dont even know why I am 1400+ right now, I always have a feeling that my rating should be negative, because in many cases I just move pieces so that I cant say why exactly I move them that way
I need to improve my play in blitz, any tips?
Do you know what your weaknesses are? Find out what they are and work on them. Looking at your games, you need to look into positional play, you don`t seem to know where the pieces belong but you also need to work on tactics at the same time so your tactical awareness does not go down while you are figuring out positional play.

very rarely do I encounter 900 blitz who play as their elo suggests. Often its best move nearly every move and sometimes with a three great moves or brilliant thrown in....
Yeah, sure.
But of course you did not provide any examples. Of course.
In reality, games like this happen at the 1000 rating level:
https://www.chess.com/game/live/136642805749
sore loser, our first game I could've said you were cheating all things considered.... I played harder and won...You said my rank was exactly were it should be.. Now its not? Man...