Several times, I have found caches that were supposed to have TBs but there was no TB when I checked it... and no TBs mentioned in the logs at the cache, nor online neither .....
... it is like TBs are a way for SOME people to score. Silly us, fools who set TBs out.
I've been having fun with TBs but have just today counted up my own... of 8 bugs released, only 3 are still in circulation, and one has had the 'bug' taken off and only the tag remains in circulation.
I am completely changing my approach to TBs.... (as I have a few as yet unreleased...)