I would get all those warnings too, I think I got mine, before my game would start if my opponent didn't move within the first 5 seconds I would abort and continue on I think I got my warnings for that.
"Friendly" warnings

I got two such warnings.
In the first, it was when I crossed 2000 on turn based chess. I understand that this is standard.
In my second, it was during a standard time control. I had been playing slowly until we got to a complicated position. I started analyzing a move for my opponent (on his turn) and realized there was a fault with the move that caused him to lose a piece and made him worse positionally as a result in additon to just losing the piece. I reviewed it and thought it was pretty eay to see so I wnent on to analyzing other moves. A minute later he makes the move that I already know was bad and I whipped out a five move combo in just a couple seconds of him making his moves.
After the game I got a warning.
I got 2 "friendly" warnings about cheating in the last 2 weeks. I never play Online Chess except for a couple of special events and I only play 5 min blitz games. Please tell me how it is possible to use a computer in a 5 min game when a computer takes at least a minute to find the best move and it also takes a couple of minutes to set the position up. I haven't played in live chess for a while, did a lot of tactics, otb blitz and chess mentor. Naturally, my rating rose quickly, but it's not even at my highest and I was never suspected before. How does this system work?