Yes, until a little over a month ago. So I do not wish to be seen as an aD source; right now I'm a member of the openacs.org community, providing personal ramblings with a background in ACS/Java 3.4 and 4.0/4.1.
Didn't really mean to end up on this tangent, so the short version is: I really like the ACS, I want to use ACS/OpenACS (depending on what I decide my personal tolerance for Oracle is), I may do some work on it later, but in the meantime I'm drawing on past experience and piping up when I feel like I might be useful or have something to say (i.e. I have worked with Intermedia/SWS a bit and am interested in the search engine problem)