It's still pointless. Trolls try to troll people with insincere posts. Other trolls don't care about the reason for the posts and only reply to troll the original troller. The original troller doesn't care about that trolling and simply trolls back.
The fact that the intention was to troll, and only others trolls answer, who then intend to troll, but who are then only answered by the original troll in a further troll, means that the troll never worked, therefore there is no point to the troll.