OP, You must be familiar with the rules because each board you will visit usually has a different set of rules. Just like on a serious discussion board, you will know the rules that apply there if you are observant and want to spend a little time reading. Therefore, start reading and you will know the complete rules for a serious discussion board.
Or if you really want to post there that bad, you can pay for a Copper member[1]
Without urgent, in my opinion the OP does not need to buy copper members because in the coming days the OP will become a junior member, and since then the OP can post something there according to the rules in force.