I've been using Plus! since 1.42b, but only joined the forums around 2.50, when I decided to write those sound plugins I make long ago. I used this board to get help, and to release the plugins.
Edit: Just found my first post: must have been within a week of the release of Plus! 2.50, as it was about linking errors in VC++. And now, I'm working on converting the Plus! API Framework to Visual J#
I've come a long way in a little over two years...