Well, about the comic... I am interested in making it, but... Snafu is quite a huge subject there.
We can still conjure up things based on Deena's idea, but that will also mean that we need to spend a lot of time on the maps between the worlds, the relationship between the characters, how the people all meet each other and... ah. So working on it too soon wouldn't end up so well.

In my opinion I think you should work on a small comic first? A 'starter' comic, let's say. You should be able to find out how to fit all of those characters in that comic - after that you'll learn a lot of things from that and then you'll be able to do the same later when you're working on a bigger storyline.

:'D

I think PChat would be like a community center sort of place within the Art Forum town. Each different forum would be either a town or a city, maybe a county or a state of some sort, with Snafu itself being it's own little country. The comics on Snafu could be famous galleries or museums; any comics that don't have a forum associated with them can have gallery space in the Art Forum area. The RP forum would probably end up being a sort of snooty, upper-class/middle-class neighborhood I think...as a member of the RP forum community, even I think we're pretty stuck up sometimes.XD I think the Art Forum would look like a really artsy place with lots of galleries and colorful signs and stuff promoting events and whatnot. There would definitely be a big town center sort of area, maybe a large park or something where there would be concerts and battles and stuff. Most denizens of the Art Forum area would have paintbrushes or pens or pencils as weapons to "battle" with, and every member's incarnation will be able to summon their art from paper to battle with other people's summoned characters. I think the RP forum would work similarly, but instead of characters summoned from drawings on paper, they'd use character sheets, and the Lit forum would do something similar to that. Maybe the other forums would use their own internet incarnations to battle, instead of summoning one like the RP/Art/Lit forums would?

Regardless, I think Spam would automatically become the bad guys in this. They could be the ghetto town, a cesspool of violence and poverty. No offense to Spam-goers. They're just easy targets.XD

Other countries would be other forums or communities, like say the country of SomethingAwful or the country of questionable integrity known as 4chan, which would probably be rather large in comparison to other countries considering its variety of subsections.

I think the Spam forum would probably represent a sort of chaotic lawlessness that deems to crumble any form of order in its path. Of course, there'd be a handful of likable Spam members, or people who've ventured there off and on. For the most part it can be a necessary evil, a place for the riff-raff of the country to be contained so they don't muck up other areas. That's why nobody really goes out of their way to destroy it. (I think that's the basis for why the actual Spam forum was created in the first place.XD) Still, it makes for a good breeding ground for the occasional dude that escapes and starts causing trouble in other places. We can even go further and have him be a "hacker" of sorts, a person who can't be killed no matter how many times the moderators "ban" him...with their fists. Or ridiculously large hammers. Or whatever weapon they want.XD Anyway, it can just be some invincible guy that starts attacking the art forumites. I'd imagine he'd look kinda like a digital mess with a humanoid form, like maybe a more humanesque MissingNo. from the old Pokemon glitch.

I think for motive, as he's an incarnation of chaos bred from the Spam forum, his need to destroy probably stems from his origins. It could be that if he can't spread destruction, his own existence would cease. In order to live, he'd need to spread chaos. Maybe in the end, we'd discover that he's not a human after all, but a virus that developed AI somehow?

Like I said, he'd need to cause chaos in order to preserve his existence. Spam is already pretty lawless and a constant source of headaches for the mods that reside there, so finding sustinance there would be more difficult than venturing out to an area that has order. For instance, the RP forum has really strict rules, and the Art forum has several house rules as well, so the chaotic virus-hacker-bad-guy-thing would probably start off things by, say, destroying or swapping images between art threads(which would probably look like separate art galleries for individual artists).

It could be like how Neuro from Majin Tantei Nougami Neuro eats mysteries; this being could eat the chaos that results from people blaming each other for the various incidents that occur. It really isn't the creature's fault, as he is just looking for food to sustain his existence; the creator could have created him for a benign reason, as well. Perhaps to improve the economy in Snafu or something or other, but it ended up becoming this terrible thing by mistake that ended up consuming the creator, too.

The chaos that the creature brings about could lead to infighting between the residents here, and then we can even get some cool fights between our characters. If Coos still wants to play a bad guy, he could maybe be a red herring towards the real thing, just taking the credit for all the chaos that's happening? Maybe? Lol, I'm just spewing out whatever ideas I come up with now.XD