To all moderators out there, can you please take an extra look on everything you approve in the
Lounge sub-forum. As 99% are spam-threads, those text seem legit, but are actually copy pasted from old threads.
So take a sentence, copy it and Google it (with quotes) and you will find the old thread. Then just press "Purge spammer" on the author of that thread, so that it gets completely wiped. I delete around 2-3 threads there everyday.
At this time, I haven't seen this bot behavior in other parts of the forum (yet).