I have a tree cache. It has Tree in the name. It says that you have to climb a tree to get it. It even has a "4" diff rating due to having to climb up 25 feet or so. The only possible excuse that I could see for not having to delete such a log would be an un-signable log. Even then, most people would take a picture, drop a token, post a "Needs Maintenance", or something. But, "I saw it, therefore I found it?" No way, dude. Your log is outta there. If you want to leave a note, fine, but don't take credit for a find with no log signed.