The forums-related stuff is self-explanatory. The French is one of my favourite quotes. It's difficult to maintain the original meaning without having it become awkward-sounding when translating it into English, but here's my attempt: "I'm forced to laugh at it all, for fear of having to cry". Seemed appropriate, given the main purpose of the site, as well as my general take on life.
Bonus: Another favourite French quote of mine is "Plus ca change, plus c'est la meme chose", or "The more things change, the more they stay the same".