Gydion: What's clean? I've seen one that had partial nudity.
That's actually a good question. The US is too anal about what is acceptable for public or not. Quite a few Japaneese mangas and animes will have nude scenes, but the anime itself itsn't inherently anything naughty or bad, and yet it's over-sensitive and censored everywhere in the US...
So... I'll give my own definition of clean.
1) No primarily sexual content. This includes close-up shots of genitals, graphic acts of sex. However ones that are more for humor and cartoonish ones might be okay, i can think of at least one or two good examples of this.
2) Non-visceral. Keep inside parts inside and unseen. I actually have a weak stomach to that kind of thing, although Fallout's exploding heads is kinda funny (
although a little unnerving). The exception to this would be blood as the only thing shown. I have an avatar that uses this alone.
3) No advertisements. We really don't need avatars saying '
drink the dew!' or something stupid like that.
4) No controversy. We don't need something that causes conflict by means of race, religion, or some sensitive button pressing.
5) Try to keep it SFW. This is mostly so someone doesn't get fired because they frequented GoG forums; Kinda makes me wish we could upload more than one avatar and mark them appropriately... But that might get confusing.
Hmmm.... off hand that's all i can think of... i can't really add in no cigarettes or drugs as unless you're advertising a brand or something it's probably more the character (
duke nukem for example) than anything else.