Maybe I'm just blind or slow as hell, but I can't for the life of me figure out how to post on wefwef. Everything else works just fine. So in the meantime I'm just using the instance in mobile Firefox.
Iโm using Mlem so of course this may not be relevant but I had kind of the same problem. I expected to be able to post from my feeds page but you canโt. You have to be inside the actual feed you want to post to.