Dont know if it was suggested before: close your topic start a new one self moderated and delete all his posts in there. Redirect all people to the new one.
or just make a local rule on the current thread. some
altcoin thread starters have done this before.
A local rule?
local thread rule.
26. Local thread rules, if stated properly when the thread was started, specific enough and don't conflict with the forum rules, have to be followed.
Those were mostly replaced by self-moderated topics, but local rules can be enforced at the moderator's discretion.
I've seen someone making a thread rule midway
here though. but the OP of that thread ended up making a self-moderated thread anyway.
this will sound stupid because I brought it up. but go with self-moderated thread if you don't want to rely on the mods.
You would still need to create a new topic as local rules cant be applied retroactively.
Also, OP stated earlier in the topic that self-moderated topics are not an option for him, so the best choice is probably local rule. As long as the rule isn't vague and is easily decidable, moderators will enforce it.