That said if he's effectively a troll, even if he's the hit-n-run type that tries to not troll too often and ignore topics after he trolls in them, this time there won't be a difference between that and people who trolls consistently, since ignoring warnings can also result in a ban now, anyway
. Otherwise he might just be a younger user who is new to forums. Quite ironic, though, that most trolls we got posts a lot in the math section and has the same grammar structure.
