Player Who Plays to Intentionally Lose
probably a cheater trying to fool the system
Or a sandbagger
This is sandbagging and you should report it. It does help your rating but you still keep your rating points if the guy gets banned. However, he is impacting other players because he (who is probably like an 1000 strength player in an 800 rated account) will likely win against most 800's he plays against legitimately, lowering their rating.
Losing on purpose in order to lower one's rating is called sandbagging and is a form of cheating.
Having said that, his/her peak rating was 946, according to you, and the current one is 802. This is hardly a suspicious rating drop. Kind of standard rating variance. And for players at this level blundering a bunch of pieces and losing in a perplexing manner is not that uncommon.
Historically, he or she has a decent winning percentage. Don’t know if it’s right to call out the name on a forum. But, it can easily be figured out by looking at my most recent games and checking profiles. Thanks.