@JollyGreenJesus said in #7:
> I wonder if this is some sort of behavior symptomatic of cheaters.
>
Chess.com is overflowing with people who download Chrome extensions that automate the process of using an analysis board to cheat.
>
> I've also been noticing this a lot more within the past two days.
I've been wondering the same thing for a while. A lot of times a player will leave, come back juuust before the timer, and suddenly they play like a GM for the rest of the game.