Just because you work at a donut shop doesn't mean you're not the accountant.
Any and every guild could potentially have a person doing any & everything. To make arbitrary restrictions based on the overall idea of the guild strikes me as illogical. Is there a reason?
If a player denies its Guild's principles the extent to which they are will determine if/how fast the guild reacts & resolves it on their own terms.
If the Guild itsself is off base of what it claims to/should be, that is another matter entirely.
I think if it's justifyable to have a guild of only one species & only one sex by ingame reasons it should surely be understandable to make one based on having a common language. Not to name it based on such... But even still i could EASILY imagine a giuld called "the elvish toenails" or whatever, acceptable name because of the randomly generated noun at the end; but still claiming that the have a right to reject you for not knowing how to speak any elfish. Or a guild name actually in elfish or such... People have made threads regarding klyros language as well... And besides; In game you''re not even supposed to use proper english, you're meant to use yee olde english--meaning rather than asking if someone wants to "Join us for dinner?" you would say askif they care to "Partake in our sup?" which ps filters turns into "Partake in our how farest thou" anyways....
The point is; I really don't see why anyone would want to take away another player's chance to be in a guild full of people who understand them. I think the real OOC reason but no IC reason is just a lack of simple justification.
[Before posting (as i often try to do) i did a search for a keyword from this convo: 'language'.
got this thread: http://hydlaa.com/smf/index.php?topic=14700.0 And am sloowwwly trudging thru it... (year old thread mind you so no need to go playing threadlazarus)... so far the most noteable part of the thread is [ « Reply #16 on: February 16, 2005, 07:48:18 AM » ]... and now [ « Reply #22 on: February 16, 2005, 01:22:39 PM »]... reply # 27 saved me a lot of thinking & frustrtion & typing, almost Dr Phil-like in its suggestion (in that it's not necessarily the smartest way to go, but it is the most realistic way to look at it, so it gives everyone pause...) ....by the way, tomyself and others who flame people for not searching... jeez try to get through these 6-pagers over a year old, and imagine getting no further towards a difinitive answer from a higher up than when you started... (dammit seytra if you were as smart as you seem to act like you think you are you would likely realize that most people aren't...

)(no offence Seytra and the others who posted in that thread but after page 4 i skipped ahead to see if anyone of authority gave a difinitive answer beyond shout/help channels) ...ok forget this, redoing search "language guild" ...ok forget that... i started writing before doing about 2 hours of reading & sifting now, sick of it, just gonna post... and if you think this little part here is long you didn't try to search the subject quite so much, but sorry for rambling)]
What's wrong with suggesting a 'only accepts you if you speak some of our language' guild should just be rping "We grew up in isolated houses.. Our families spoke a forgotten language that was used by their traveling group. A group which got thinned through tumulduous times and has been scattered to the ends of th inner crystal [or some such] and only trusts its own..."
Even if you don't want to validate their language as another language of ps, call it a dialect of human/ylian or some such... or even a strange accent...
That way it all fits nicely for rp...I'm sure some of them learned whatever we are calling yliakkumese english. Be done with it. There is still a certain minimum english to be used if your guild wants to exist like a real guild ie: forums, quests, shouts... etc...