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Reporting the individual posts is still important. The accounts get a warning and the progressively more serious bans.
It is a bit frustrating though because I reported numerous of them for plagiarized content (copy and pasted their entire conversation on multiple unrelated threads).
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Yeah, I basically just report individual posts now, and mainly for plagiarism, repeatedly posting mining pool ads on every page of an ANN thread, and referral link spam.
I do have some good news to report though: many of the people I mentioned in the OP have been banned and the threads they were bumping have come to a screeching halt.
EvenCoinSafeInsureNelunsDBX - I saw your shill alert in this one, and no surprise it went unnoticed by the bumper bots.
NEOGAME.IOBiohalSo now it's time to go back to those threads and post a warning message in each letting them know why their sleazy tactics backfired, and the above listing will make it easy to keep tabs on them.
EDIT/UPDATE - fixed quote, also, the boomertoo and Klacik bots have fired up again; I just reported two more plagiarized posts for each.
2nd UPDATE - Added Biohal & Neogame.io to list of shilled threads.