[Awfully compelling idea. Who came up with this?. I shall invest.] STOP IT, MF!

[AGD]

All accounts will be closed anyway. You can stop your experiment now!

[bit-freedom]

Yes right, all the spam posts are so annoying. I have been seeing many of these posts everywhere. And these bots are bumping the old threads.

[Iranus]

I keep trying to report these posts, but it looks like a futile battle.  Considering there's a captcha when you register and when you log in, it seems difficult for there to be a bot doing all of these, even though they're very bot-like posts.

They're all newbie accounts and they only seem to post 1 spam post, so I don't see how they could be getting past the forum's system.  IIRC the forum makes you pay a fee to create new accounts if you create several from the same IP address, so they would have to be using a VPN with many different locations or possibly hacking a lot of old unused newbie accounts.

If a human is doing it, I doubt there's any useful way to stop them at all except for banning the accounts one by one, which would be pretty ineffective.