It's not a "bug". It is players intentionally cheating. This is doubly annoying because I know a lot of the cheaters personally. They are my friends, but they are immature and they like cheating to inflate ratings. I don't like reporting on my friends, but they keep doing it no matter how many times people ask them to stop. And when one handle is discovered, they just create another to keep on cheating.
Even though I am friends with them, they like to match me, take my points, then mock me for "losing to a 400". I generally play anyone and avoid resigning on move 1 to choose opponents (which most people on this server seem to do), but it is extremely obnoxious to play an intentional cheater, so I resign on move 1 if I notice in time. Of course, their obnoxious behavior hurts my game because I need to waste a few seconds on move 1 looking at the opponents to make sure they are not intentional cheaters, which means I am down several seconds vs. legitimate opponents.
There are several very good bughouse players (some NMs, IMs, etc.) who have decided to sandbag their bughouse ratings down to 400 so they can partner friends (or simul with themselves) and get other accounts up to 3000 by cheating. Is there anything that can be done about such cheaters?