I am not entirely without hope for Cereoid. He does know something, although
not nearly as much as he thinks he does: the real problem is that he cannot
deal with the uncertainty of not being in the know on ... anything.

Most persons who show this behaviour know very little. The fact that Cereoid
does know something is proof of some ability to learn, which leaves open the
possibility that he might learn to change his behaviour. Maybe he will just
learn to save his postings first and wait a few hours, then edit them before
posting. That would make a difference already. Maybe, in the long run, he
will even learn to stay on topic ...
PvR