That particular hack looks like a bad idea. What if somebody actually put a bold-face link into a post or comment? However, your original suggestion wan't as bad. All non-relative links to user pages get blocked by the anti-kibitzer. (Links in "Top contributors" and stuff in comments seem to be turned into relative links if they point inside LW.) It's gross, but it works.

Version 0.2 is now up. It hides everything except the point-counts on the recent posts (there was no tag around those.) (Incidentally, I don't have regular expressions because by the time my script gets its hands on the data, it's not a string at all, but a DOM-tree. So, you'd have to specify it in XPath.)

I think trying to do any more at this point would be pointless. Most of the effort involved in getting something like this to be perfect would be gruesome reverse engineering, which would all break the minute the site maintainers change something. The right thing to do(TM) would be to get the people at Tricycle to implement the feature (I hereby put the code I wrote into the public domain, yada yada.) Then we don't have to worry about having to detect which part of the page something belongs to because the server actually knows.