How far can they go? What's appropriate/inappropriate?

There's a character on named "Ranal_ape_ME." Is this appropriate?

I would say no, as it may not be the saying it is intended to be but it is very simple to figure out.

Oh come on guys, it's a joke. At least I had the decency to mask it somewhat...;)

As i have said before: You have no clue the age of the people behind the screen that your text is being sent to.

it isn't necessarily age (you're implicitly insulting every kid).
sometimes it's just that some people lack the words "decency", "being self-reflective" and "respect for others" in both active and passive vocabulary.

heh sucks for you Ranal, course nothing can really be done about this until either the devs decide that this can't be allowed. Just to let you know i don't really have a problem with the name *surprise there* :(, but yeah some kids on here are a little young but old enough to figure this out and their parents wouldn't want something like that for their kids to see.

"sometimes it's just that some people lack the words "decency", "being self-reflective" and "respect for others" in both active and passive vocabulary."

oh come on tosh, nobody contains that kind of vocabulary if you spend most of your time playing on the internet. :P