Yeah "just ignore them" is easy for me to say, but not that easy to do. I myself get plenty of those "tell me how I get started with X" emails to which I can't bring myself to reply "start with the docs". And I'm sure he already gets plenty of those support requests on account of his programming tips and courses alone...
Even with the small amount of open source software I've maintained I've gotten all kinds of angry emails and completely useless "bug reports" with no information. It gets exhausting after a while, and I agree that it's hard to just say "I don't care at all" when it happens. At minimum it's a bad look for you professionally if you never actually help maintain your open source software.