I'd like to see a "Match case" option on the library panel menu. It would help avoid situations like this, where I'm looking for all the books I'm in the middle of reading (which I tag READING), and don't want to also find books that happen to have "Reading" in their bundle name (which I also tag).

I suppose I could rename my READING tag to INPROGRESS or something like that, or I could set up a collection with a rule such as mytag:READING -mytag:("daily bible reading","reading & preaching","daily readings") that weeds out all those bundles (it would need to be updated occasionally). But still I think a case matching option might come in handy. Maybe I'm the only one who would, in which case of course don't bother. I can work around its absence. Collection rule coming up now!