For what it's worth, /c/AskTransgender exists for asking questions too, and I suspect transition questions are welcome here in /c/Trans as well as places like /c/mtf. My point is that you don't have to take on creating and moderating a community to help build a knowledge base here in Lemmy, there are people here willing to help. I suspect a lot of us are sensitive to the reliance on wikis on Reddit, for example.
I'm happy to try to help answer questions to the best of my ability, I'm fresh into transition myself, less than 2 years into it, and I tend to be the kind of person who has a million questions myself and I spend a lot of time seeking answers 😅