I try to log every find that I find, but there are times I physically cannot sign a log because of 1) didn't bring my own pen, or 2) something is wrong with the log such as water logged or crumbled. No matter the case in my find logs on the website I will make note of that. One such find that was one of go_purdue's caches, I noted that I found it, and that the log was sopping wet. She emailed me thanking me for that info, and that she would go out and fix the problem. If an owner wanted to be picky and delete my find just because I neglected to sign the physical log, well that is pretty petty if you ask me.