Anea, from Oh Look, an Alt posed this question in Blog Azeroth's Shared Topics this week. So I decided to ramble on about it...
I'd be torn.
The good: more readers, more publicity.
The bad: more spam comments, more trolling
The neither good nor bad: attaching a link to my priest might give the impression that this is a priest blog. I don't want people coming here just for priest stuff, because, as we all know, I write about whatever pops into my head. Granted, playing a priest means priest stuff tends to pop into my head more, but I'm still not a really reliable source of all priest info. I can suggest a few good blogs for that sort of thing though.
In fact, linking to a particular character could cause all sorts of misconceptions. If the toon has all sorts of raiding achieves, but the blog is about leveling alts or ui customization or hardcore rp, well, that could be bad or at least confusing. And what about those who don't really have a main, per say?
And then there is the idea of more readers. I like it when people read what I write, I really do. But I'm not sure I have a thick enough skin to deal with some of the stuff the popular bloggers do. And then there's the problem that I write for myself. I learned that a long time ago with fiction writing, if it makes me laugh it did its job. Anyone else enjoying it is just a lovely lovely bonus. Now I've modified this a bit with blogging. I try to make sure that my topics are interesting to other people, but I still talk only about stuff I find interesting, and I don't choose my topics based on what I think others might like. This is why I don't have a set topic for my blog, because I am interested in lots of stuff in wow, and I hate being limited.
I think it'd also depend on how much control I have over it. Can I set permissions so that you only see it if you're logged into battlenet, or only if you're a guildie or play on my server? I'd be much more likely to do it if I had some control over who saw it. In fact, I don't think I would do it unless I had some way to set permissions. So, probably not.