I have, but stopped when I ended up getting into editing wars.
Well I was editing a section about my own work when I rage quit as an admin/mod/whatever was reversing my edits.Me too. I used to but the admins are so overzealous and up their own rectums that I gave up. Constant amount of "no fair use attached to this image", "citation missing" "according to who?" etc etc. I have up roundabout 2006.
And then there's the point that you should never rely on Wikipedia for accurate information anyway.