Polar
Alright guys, stop.
Spoiler:
We'll be enforcing stricter rules in this area.
Spoiler:
Wow, this is a horrible idea. Just my opinion, but impersonation is going to be a real issue here, and people won't be around to stop it all the time. I for one don't know every users IP so I can't just match it to guests easily.
Let me also say that letting guests post will make it a lot easier for spambots to get into the site.