true, for a site this visible spam would be a huge problem, but that could be solved with an effective email verification system or similar. many other public blogs allow comments (i.e engadget). would mean more work for the core crew, but I think it would be valuable. i’d rather comment on those timely posts on clogger than the usual “what school is the best” posts that are often the norm on the boards. my 2 cents…
what’s your blog url by the way?