We have sections you must join to use. You can see the full list here. Most you can join with a click. The medical and pastoral groups require approval.
Note, some groups were not accepting new members properly. That is fixed.
Post in this section can be seen by guests and search engines.
To some extent, that is a benefit to sites like this, though given the overwhelming influence of porn in general, I honestly wonder if there are any "normal" people anymore. Very possibly not in the current culture of "advanced" societies. I have friends in some highly conservative religious groups - think Mennonite, Huterite societies - and upon discussion with them, even they have seen the impact despite several of them being generations without modern media access.
In the end, I know human's want and seek sex and do so in various ways. Sociological study reveals all manner of human relations across time. Historically, we may not even be in the most debaucherous era or society to have existed.
But sites like this attempt to "normalize" sexual activity between heterosexual spouses and that is a good thing overall and I believe righteous before G-d. The stumbling block arises when one tries to judge their "normal" against someone else's "normal", for better or worse. We humans have never been good at being satisfied with what we have....