@Lenny
There's a big difference between Discussion of Clop, and having NSFW content on the forum.
The sad and annoying fact is that age gating a section of the forum, would not only require more PPI from users (something that for minors, is heavily restricted as mention by Jeric) but also it goes against the core principals of Poniverse.
Poniverse aims to be an All age-friendly forum, for all members of the fandom and not just Bronies. I feel strongly that adding an NSFW section to the site, which although may be enjoyed by some members, would be highly against this overall goal of the forums and as I previously stated, would alienate a lot of the user base.
The forum doesn't need to have, an NSFW section in order to be hip. It's a forum first and foremost for the discussion of the Show. If you want porn, go to a porn site to get it. Discussing Clop is fine and can go right ahead as long as it stays mainly safe for work.
This forum, has and always will be a family friendly forum.