Except on Reddit you also have to be increasingly careful that the person you are wanting to go up against and anyone who's commented an affirmation of agreement with your opponent aren't a subreddit moderator or you'll risk getting yourself shadowbanned (through automoderator bot) across the quite possibly large part of Reddit they control.
You also have to be careful that you're not saying anything that upsets the admins or you'll find yourself permanently suspended without warning and properly shaddow-banned if they catch you making a new account.