I think most ENTPs who want to troll do it for personal amusement and attention but can easily pull back when needed so they don't get banned, similar for INTPs, they know they’re trolling and push the boundaries to see what they can get away with, watching Synarch was kinda funny cause it was clear he was effing about but too often people take ENTPs serious without just cause.
A NTJ is more likely to take it too far and just go someone while a NFP is quite capable of going on a martyrdom rampage against all the injustices of a forum. NFJs only make good trolls if they're really, really religious. ESTPs can pwn in trolling if they just play the rude and arrogant card but otherwise SPs can only do it well if they post inappropriate images in response to all posts. SJs need to take it personal to pass as a troll.