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Account Flagged for Suspicious Play

I'll see what I can find. You've played in our Untitled Tuesday events before, and I've never had reason to suspect you of cheating, so I don't know what could be causing this.
i have one question which might lead to the answer: do the computer bots that analyze every game played analyze it as soon as it's played, or could there be a delay of some time (maybe even a few weeks)?

You should be un-flagged now. Something was triggering in the system. There are things (such as frequent disconnects, to flag people who disconnect regularly on purpose) that are often indicators that someone's likely doing something they shouldn't, but they can be triggered legitimately, and that happened to you.

They don't analyse every game. There are far too many of them - well over 2 million in a typical day. It would take a large server farm or two to check all of them. They have systems that try to identify which people and which games are the most important ones to check, and they also check when someone sends a report in. So some games are checked almost immediately, and others might never be checked.
ok. because once i played a friend in real life a few in unrated here ( he's an 1800 and wins almost every time so i didn't want to lose rating points all the time), and i came up with an idea to look at a weakness that he created every move he makes (a piece can't be everywhere) and i won two games in a row against him that way. so i thought this could have triggered it, except that the first time the message showed up was a few weeks after.
I couldn't join in the Untitled Tuesday today, because it said my account was flagged for suspicious play, so i can't join! This is really unfair and has to be changed. I didn't even have enough time to play a few games to un-flag it before the tournament started! I have had that message go on and off for the past couple months (not sure what triggered it), but i didn't think it there was any kind of problem it causes, until now.
Thoughts?