@DYING_S0UL, as you may have read in this thread, mod "privileges" (local and global) are those of a moderator, and as mentioned, you gain access to boards that other users cannot see or access.
You don't need to be an expert in anything, but you do need to have "advanced" knowledge about cryptocurrencies and, especially, how the forum works.
Moderators are not paid, but receive additional tokens (ALTTS) when the administrator makes distributions.