Neopets has a lot of redirecting problems. It redirects to sites with viruses that try to download themselves. If I didn't have Norton I'd have a lot of them.
I don't play anymore because of that.
Imythess is a post by post Roleplay site. The staff is friendly and resourceful and hold fast to a very strict PG-13 rating. The site has never had any hacking problems or viruses. All in all if you are looking for a fun, roleplaying board this is it.