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To be thorough, I've checked all 10 posts. They're copied from earlier posts within the same thread.
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You've made me curious about the Off topic section, I haven't read it a long time ago.
So I've started to check one of the above mentioned bots' posts and started to read a random thread....
It's horrible...
On the first page I have checked, I've found several bots, copying the last post, and they don't care about duplicating a post in a thread...
You can check this user, if you want https://bitcointalksearch.org/user/john-joseph-patagan-1736281 and this is https://bitcointalksearch.org/topic/m.31917615 one example where it copies the last post without any effort to hide that it's copypasting....
I don't know if the Off topic worth the effort to start to dig it up (the topics and the users), I hope that the merit system will slowly make them understand that it's not the quantity but the quality which will make them rank up on the long run...
Does it make any difference if these account are tagged? Does any of them care about the red trust? Does the bounty campaign care about red trust? I'm not really sure that this worth the effort... I think what they really care is deleting their posts (activity decrease) or ban...