[quote=@LegionPothIX]
[@Light the Dark] I am always cautious when I see anything that says 18+. It's been my experience that the type of people who create those types of games--that is to say games requiring an age limit--are the kinds of people who themselves wouldn't be let into exactly such a game.

There are as many ways to weed out immature RPers, and stupid people in general, as there are people to weed out. Some arbitrary number suggests (to me at least) that the person who created the RP is to lazy to do any of them. It's just a big red sign that says "lie convincingly".
[/quote]

Pretty apt. I consider it virtually identical to something that requires a particular gender of roleplayer - how the hell do you know?

Rather easy to lie. Ultimately, I consider 18+ when used in that context more of an indicator of mature themes than anything else. 3 characters over typing out "mature" for those who would otherwise be 'triggered' by reading that sort of rp :p