I am not a very new user, in fact by looking at your profile I have been here for much longer than you.

Older/active users are predominantly left-wing and use their flag power to flag right-wing points of view, because they deem them as trolling (charitable point of view) or because they want to silence them (uncharitable point of view). Then, mods come and ban those who amass many flags because someone who's got many flags is irredeemably a troll.