While I don't think you are going to find a guild, on here at least, that never has the raunchy or otherwise mixed company appropriate guild chat, I do believe that if you are looking for a more mature guild with an emphasis on creating a helpful and friendly environment, BDA would be the guild for you.
You can check us out at
bregan.guildlaunch.com.
Send me a tell online if you have any questions about Bregan D'Aerth. I am usually on my enchanter, Mirad.