With a personal repo I maintain, I once had someone look me up on linked in, and then file a support ticket with my employer demanding I reply to his issue on github. He was asking for handholding following a clearly documented process and ignored all the warnings.

Needless to say, I did not assist him in any way and closed the issue as wontfix.

I've also had people demand that I expand the narrow scope of my project to cover a whole class of devices with completely different APIs, instead of the sole focus on the series from the same manufacturer of devices I own and use. Closed as wontfix as well with a clear statement that I will not be expanding the scope, but am more than happy to link to their project covering it.