Perhaps I can explain it from another perspective. Those who have been on the forums here have seen many people come and go who ask for stuff to be provided to them without contributing to the community in any way--not monetarily, but by participation. Yeah, some of can get a bit short tempered, but it is due to seeing this happen again and again.
My suggestion to new arrivals, talk about the game, become part of the community before asking for stuff. People share patreon information with the community because it is a community, not because some told them to.