I don't want people who will play my games to effortlessly find who I am and what other things I do online.

Let's flip this around:

I want to get other people to run my software on their computers without them being able to readily find out who I am.

Which sounds fine if you're publishing that software as open-source to people who can inspect it ... but not so great if you're publishing it to people who don't have any way of telling what that software is up to!

(Which isn't to say that you're up to anything bad; just that the market is such that a lot of people are up to something bad, and this leads to market operators taking some measures against eagerly supporting untraceable authors.)