Using a variation of the BBCode could end up being a good thing, or a disaster. I think it would certainly add a new dimension to comic contests and the like, and it would give the users more freedom to express emotion and character mindsets.
At the same time, it could lead to massive amounts of suck comics with no real content, just a buttload of form-lacking garbage. The idea of characters with lightbulbs over their heads is certainly interesting, but it does lead to a stifle and somewhat of a limitation.
Really, what got my attention was the idea to use some sort of code or something to add small graphics into the comics, aside from the characters themselves. Before that, I was not quite as interested in this possibility.
---
Do you want ants? Because that's how you get ants.