(1) Capture user's name in sign up to use in "Hello XXX" instead of using email there.
(2) The use of ACA and ACAST are inconsistent. I would suggest replacing all ACA with ACAST because it's a bit more legal.
(3) In creating a new post, put a hint to say first creating a subject, then entering the post content. I was a bit confused at first.
Thx for the great work & effort!