I don't think Nf4 was accurate, and if anyone was cheating, it was probably my opponent because he took around 15 seconds for each move, even a simple recapture. And how do you flag on move 12?
Flagged for cheating

I'm no expert but I didn't notice anything in your moves that seemed unusual. You must have received that notification by mistake. 🙀

Yup, that's what I thought. That's the system I ususally, play, c3, Nbd2, Bg5 no matter what, and then develop normally. I call it the momo attack

I'm not sure it is one game that gets you flagged... but I don't know that for a fact. Of course, you lost the six or so games before that (with one draw), so I don't quite understand it.
I once got flagged in a bitz game many, many months ago when I was still rated 1300 or so. I was studying the board, and was thinking "if he makes this move, it would be really stupid because"... and I analyzed a five move combo.
He takes 30 seconds, and makes the stupid move. I whip out the pretty combo, and then get a warning.

Yes, maybe they flagged me for suspected sandbagging?? So I just finished the game with computer analysis, and (out of 12 moves) I had 0 blunders, 0 mistakes, and 2 inaccuracies... Also back when I joined, I had a blitz game where I sacced my queen for a pretty double bishop mate, and also got that warning, but that was back when I was around 1500. (Can't find that game now)

And I just finished playing another game, I will submit it for compute analysis soon. It will probably have more blunders and mistakes because I got into more time trouble and hung my rook
The opening phase does look a bit similar, I pretty much played the same moves that I played in that first game.

Oh wait nvm, I never did hang my rook! When I played 30. Nc4 I thought I was hanging my rook, but then I realized that if Bxe3 then I have Nxb6+! and if his king goes to d8 I have rook c8, if the king goes to b8 I take the rook with check and then take the bishop.
I think it's 1. d4 that got you flagged. It's a strong move played by many GMs, but you're not even an IM. Something doesn't add up.
Yes really. Who would waste their time playing blitz? If it's for fun that's fine, but just like watching TV, it's not going to help you improve.

When I am bored I play blitz, also it is for fun, and I use it to test out new openings. I make lots of blunders in blitz, but I also play online chess to get better at OTB longer time controls.
I find the huge list of people banned for cheating strange and have no faith at all in the unexplained detection methods used. Your experience certainly does nothing to foster faith in those methods.
The suspicion harboured by lots of the people who post on the forums that their opponents are cheating (as shown by your own comment above) is even weirder.
Maybe one weirdness begets the other? That is, the paranoia of the visitors to the site makes the managers think they have to do something?
Come to think of it when the site develops its peculiar automated system and produces that huge list of banned people maybe that feeds the paranoia? Although from the comments I have seen the paranoia doesn't seem to need any feeding.

great to see chess.com doing all it can to stop cheating.i have started playing through my games when finished with chess king i have found a good 50% of people i play playing the best moves what the chess engine says play.the only reason i carry on with this site is because i take it like a training session and play people otb at my chess club.

great to see chess.com doing all it can to stop cheating.i have started playing through my games when finished with chess king i have found a good 50% of people i play playing the best moves what the chess engine says play.the only reason i carry on with this site is because i take it like a training session and play people otb at my chess club.
They are sending warnings to the wrong people..
I was flagged for cheating recently...
Here is the message I got:
And here is the game I played: