is it suspicious to win 18 games in a row and not seem like you are rated so high?

Should I report?

my rapid winstreak is 17...

Ok I just played against this dude and he doesn't really seem like he is 2k rated. He literally blundered a pawn, the exchange, and a piece.

well i mean i hung two pieces in 5 moves in a 3min game under no pressure at all today

It was G30.

how much time did he use lmao

The average is 30 seconds per move approximately.

ok so he isn't using his time at all

Well the game was 16 moves (he/she resigned). Also, 30 seconds should be enough to not blunder so obvious stuff.

On the safe side, you can always report.

Because if your opponent is somehow innocent, Chess.com would probably simply dismiss the report and the report will not add a "bad reputation" to the account.

Oh! bad reputation never knew there was such a thing. Just like to add. Winning @ / in life is the most important thing, way more so than beating opponents in Chess. These precious things you learn along the path to enlightenment, if you’re very lucky🙂

Nah...I'm just thinking that there might be one. What I am scared of is that for example, an account might get blacklisted just simply because another user made a report against him/her, even though the account would turn out to be innocent.

reporting someone that you believe has been using outside assistance is your right and the right of anyone on this site. I for one trust the integrity of the people responsible for making those decisions. Pretty sure there's a cheating forum here. This is probably where you should be directing your questions. Good Luck

I won over 100 games in a row and did  not consider myself all that strong.