Guest: In the past, there have been a lot of issues here with trolls who merely seek to insult people and stir up fights among our relatively polite debating folk. I don't think that's your intention, but I'm afraid you're getting the aftermath.

I personally don't have a problem with folks remaining unregistered, but it's hard to have a discussion with an unknown quantity of one or multiple Guests who all refuse to even use a pseudonym. "Anonymous One" would work, as long as you use it consistantly. Failing to do so is kinda the internet version of heckling performers.