My public key is on some key servers and I didn't upload it. The proof (to me) is that it is signed by a key that hasn't signed the key on my computer. So somebody was playing around with their PGP program, signed my key, and it uploaded it to a key server. That may have been the default action. So they leaked their IP address to the key server, along with their association to me and SR. It's best for newbies not to fuck with key servers at all. Disable everything that has to do with them. Why? Key servers run on web servers and all web servers log IP addresses by default. If nothing else, the benefit is to detect malicious behavior, DDOS attacks and stuff like that. The side effect is being a target of subpoenas.