I've certainly considered that. I wish there was (read: I wish I knew) a good way to "zoom" a picture without interupting the flow of a text article. A modal popup that the user closes when finished is pretty heavy-handed but ultimately seems like the least intrusive in that specific case (link warns that new window will open etc etc).
I don't really care about that, but about the principle. This is just for a small personal site. In fact, the content is secondary, the goal is as much (or more) to think through some of these issues as to actually put anything on the web.
Because I have a hard head. I end up spending a lot on bricks, but my head's doing okay. Anyway, like I say, it really is a matter of principle and experimentation and not meant to be practical at all. I mostly want to see what it takes to get something that goes all the way with validation of all sorts.