The type of over-pumping topics usually contain many pyramid quotes, which are almost non-sense discussion, inside.
Hate to say this, but pyramid quotes hurt my fingers and take lots of my time to scroll computer mouse to scan and find worthy posts to read.
You can easily report them as they are listed in the rules. The question is if a thread is full of those fake conversations isn't it better to just lock the entire thread and notify the OP that if this continues he will be banned.
It would be far, far better to just lock the thread (and ban the OP) but given my experiences reported above I'm not holding out much hope that will happen. I haven't tried reporting bots for pyramid quoting, mainly because I am skeptical they will be marked good but I'm also not really how sure how best to word my comment for such. I might ask Welch in his guide thread about that when I have a few spare minutes.