On Drupal.org for 16 years 8 months
Mucking around with Drupal for 10+ years.
I like it.
It does what it should.
I'm still fairly new to Drupal and therefore haven't contributed anything of any value, however I'm very happy to offer help to other new Drupalers taking the same path as I did about a year ago.
I've built about six 'live' sites with Drupal, none are earthshattering, but they work and do exactly what they should - obviously thanks to all of the hard work the Drupal Developers have put in.
Stuff I'm currently working on, again certainly not earthshattering:
www.sheffieldnarrowboats.com - my own narrowboat hire business
www.sheffieldcanal.org - a community site about the Sheffield Canal
www.csss.org.uk - Czech and Slovak Society in Sheffield
www.ulrc.net - a meeting place for those vaguely interested in Land Rovers
www.strawpoll.org.uk - a simple, free, public voting site