Abuse of the( backslash E m command)

[AskaRay]

If you're letting your young kid play it then that's on you; like that guy playing the game with his daughter, he's clearly watching what she does in-game.

If someone is sexually harassing someone else, you can report it. The GMs do take that very seriously and it will be looked into right away, despite what some people say.
It's the same concept of...for example, kids swearing at others over voice chat in COD or something. Is it appropriate? No, but it falls under "Online Interactions". They aren't going to remove the voice chat feature in COD just because some people say inappropriate things. Same with this here; if it's not said in /em that won't stop that particular person from saying whatever offensive thing they're gonna say. They'll just move it to /s or /y or, gods forbid /sh and then everyone has to hear it. Technically if they find you're under 13 they can suspend your account anyway.

I mean, personally, I play with the censor off. I don't care. But it is a personal thing.

So. Yeah, this falls under "deal with it". Like I said before, just report people. That function is there.

Edit:
Here's the ESRB rating page again since I guess you didn't look at it before.
It tells you what's in the game. "Language" and "sexual themes" are already there, in game. If you don't notice them then you aren't paying attention, and that's what the developers can control. For everything else, like every single online MMO or FPS or anything, is "Online Interactions Not Rated by the ESRB". Minecraft has it. WOW has it. EVE has it.