If you need to contact me, send emails to karl+w3c with domain name la-grange.net. (Yes the "+" sign is part of the email")
I have been one of the employees of W3C. My last role was Web Community Liaison for W3C. I was also writing on the W3C blog.
Prior to W3C, I have worked for various companies and organizations as an Astrophysics research assistant, Web designer, webmaster, project manager, consultant, Web agency technical director. I have translated several W3C Recommendations in French as a volunteer.