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Previously there was a feature requested to add a title= tooltip to internal comment links. This was recently marked as status-completed but was really only half implemented, as discussed in that post (how does one re-open an issue, anyway?).

Aside from the incomplete feature, there's a bug:
If a comment contains two or more links (ie. this post's first comment), then the tooltip for every link in the same comment has the same tooltip text, specifically the text from the first link.

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We aren't going to do an additional database lookup on every comment URL. The current implementation should suffice.

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It's a good, light-weight fix. Plus, "Opera". – random Oct 5 '09 at 1:11
I am torn. On the one hand, I hate Opera. But on the other hand, I like you. :) – Jeff Atwood Oct 5 '09 at 1:32
I'm not suggesting a database lookup for every comment link, but an in-memory LRU cache of (question_id, title) pairs seems like it ought to do the trick. But hey, it's your code. :) – Greg Hewgill Oct 5 '09 at 1:38
@Hewgill… ? – random Oct 5 '09 at 3:29

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