[unboggling]

I've found most downloaded tags mostly useless unless a specific book's initial incoming metadata -- usually grabbed from filename rather than internal metadata -- shows an author and title unknown to me and not indicative of genre or subject. In those cases it's often faster to check appropriate reference websites for good data than to download tag metadata just to later discard it. At any rate I examine every book for format quality (and fix if possible, discard if it has major problems) and apply a tag code that rates format quality (_q3 means it's ok, _q4 good, _q0 bad). That plus a general genre tag (sf) and a general type tag (an, col, zine etc) are mostly all I use except in cases where specific info is useful such as a code for what's wrong with the format (deleted after I fix it) that allows me to group books needing format processing together into similar categories to allow bulk processing.

If for some reason I want to see what the library/publisher/somebody tagged that book with, I can always download the tags later. Why should I keep them cluttering up my taglist and db in general when I can always get them from somebody else's database later? I find that I never need to do that.