Wikipedia defines internet trolling as:
In Internet slang, a troll is a person who starts quarrels or upsets people on the Internet to distract and sow discord by posting inflammatory and digressive,[1] extraneous, or off-topic messages in an online community (such as a newsgroup, forum, chat room, or blog) with the intent of provoking readers into displaying emotional responses[2] and normalizing tangential discussion,[3] whether for the troll's amusement or a specific gain.
It seems obvious that there are posters on this forum whose frequent posts fit the description of "troll", most likely for their amusement. And there are those posters who keep responding to the troll-like posts for reasons of their own. They just can't stop feeding the trolls and the saga continues ad infinitum.
If one wishes to stop the trolls, just don't respond to anything they post. Nothing could be simpler!
Otherwise keep on responding and feeding the trolls and they will keep up their chumming and enjoy how many suckers take the bait.