For your kind information you should know
copper member = member
Thats rules not made by me, its made by btt moderator.
Copper membership will have almost same permission as member rank (can attach images, add personal messages, using signature) but it doesn't mean Copper membership = Member if we talking about rank in this forum.
You need to get 10 merit if you want to become Member rank.
Tl dr Copper membership != Member