I am on as many forums as softwares I use and I have understood this:
each one has developed its own culture. Others are helpful to newcomers, others not. The best one so far is Mcneel’s (Rhino 3D) forum.
Unreal Engine’s forum on the other hand is one of the worst. Few people, not very polite, and not at all helpful with newcomers.
I have posted two questions in the last 20 days and not even an answer. Not even a comment on how I could ask the question better.