I've made themes before for my personal site, but I've now decided to offer premade themes for other people to use.
Basically, I want to make it foolproof so that the layout doesn't "break" when someone tries to add a blockquote or a smilie or something else I didn't account for to their post. I've tried to cover most common codes people could use, but if I'm missing any, please let me know.
Any other comments or suggestions about the overall layout are great, too (though I know the header is rather plain, I'm working on it).
Also, do you think the quality of this theme is enough that other people would actually want to use it on their own site?