[ghaff]

Anonymity isn't a guarantee. But with reasonable op sec e.g. don't use your nick elsewhere, don't tell people about your blog, don't promote under your name, you're pretty safe so long as you mostly stay away from politically controversial issues. (Which may be why some people want to blog of course, but I have no interest.) Frankly, you're pretty safe so long as you stay away from polarizing topics and kicking hornet nests in any case but anonymity does add another layer of protection. Of course, you don't get professional benefit either if that's a concern.