Incidentally, there was a recent surge in spam bots. What they all had in common is that they've had a small, typically hidden (same background colour as the default layout) link somewhere in their post (though some made a better effort than others which is what ultimately). I've already removed the links (staff powers FTW!) but left the rest to the forum mods.
The really scary part is that although some posted random things, others were actually ontopic (e.g. one post talking about bro moves for the upcoming M&L game) and wouldn't have been coughted if some other bot didn't make a blunder.
The really scary part is that although some posted random things, others were actually ontopic (e.g. one post talking about bro moves for the upcoming M&L game) and wouldn't have been coughted if some other bot didn't make a blunder.