It doesn't mean what you think it means.
I see RPGs all the time that say they're "semi-literate" and I think they're trying to say that they're semi-LITERAL or semi-REALISTIC which would mean that the way the characters operate is as they would in reality, only they can speak human languages to each other, which is the case in the vast majority of RPGs. This would mean that they don't allow any other sort of fantasy aspect whether that be pertaining to appearances, magic, or anything else that differs from what you'd see in the real world.
Semi-literate does not mean semi-realistic or semi-literal or whatever they're TRYING to define themselves as. Here's what is actually means:
Not so nice, right? Not something you want to advertise yourself as. Please, before you start calling your site "semi-literate" realize that ALL TEXT-BASED RPGS ARE FULLY LITERATE, or at least the ones that aren't one-liner based and actually care about the writing quality. So if you have a word count minimum at all, if you have any rules at all pertaining to how the posts are written, you're most likely running a FULLY literate site.
So please stop and think about the definition of the word before slapping it on like you know what it means. Every time I see a site that calls itself semi-literate it makes me want to scream. :') So this is just a helpful PSA for admins who didn't take one minute of their lives to google what it actually means, and to maybe stop calling themselves something they're not.