I don’t know why you havent gained entry, unless its for married women only and you are single. Either way, I wouldn’t be sorry.
I think it is a dangerous place for some people. I have friends who were having some serious marital trouble and found all kinds of support for their “bad” behavior (not wanting to communicate, keeping secrets) from others struggling with the same issues. Some people will get heterim for some very specific and personal issues and post them as “options” available for the taking. Someone who is struggling with certain laws may look for a mentor to answer their questions, or they can just post a bunch of grievances and find a bunch of people to back them on the validity of their complaints. Support is extremely important, but bull sessions that threaten marriages are really dangerous. These are things I have personally experienced/read there, not third party.