Sometimes, I read a username in found logs, logbooks or will attend logs, maybe even in a listing as the cache owner or a name tag during an event and I am wondering, if I already had contact with them, when the username seems familiar.
What I think would be useful is an extended tool in the manner of the "who favourites who" tool. "Who logged whose caches" maybe. I want to enter two usernames and get a result which shows me, who logged which caches of the other (or maybe dnf'ed too) and vice versa.
If this is generally possible consider this a feature request. If there is a way to do this already (without GSAK) I would like to know how. :-)