I somehow accidentally ventured into Drupal several years ago, somewhere with Drupal 4. Eventually I have been digging deeper and deeper into it, and am not afraid of hacking into existing modules to address problems I encounter. I am mainly active in the issue tracker now, either reporting bugs or offering solutions to problems. The largest Drupal project I did so far was a custom Intranet site serving 150 people in 3 languages. Another nice but much smaller one is an on-line article submission queue so authors can track the progress of their submitted material.