Nah, not really. Reddit is basically the worst platform possible for debate. With an imageboard like 4chan, everyone is anonymous and once a thread is over, the discussion disappears and everyone moves on. But with Reddit, someone can look through your post history and find something they don't like, and then try to use that against you when you're both arguing about something completely different. Or failing that, they'll use some pointless factoid about your reddit account: Redditors think that "you must be a troll, your account is only a few months old" and "says the guy with negative karma points" are actual arguments.