Heya,
Naw, not quite a lawyer. I'm studying political science at college, but I have as good of a chance of going to law school as I do as doing graduate work in philosophy (read that as I have no idea what I'm gonna do with school).
What I am though, is a private pilot with an instrument rating who is working on a commercial certificate, so I pay attention when people speak up about stuff like this. All I posted is what I've been told by people, and it makes sense; to me at least.
I think in the situation of being in a flying club is different. It's all about intent, I think. If I were a 180 hour pilot (which I am) who is in the process of building hours and I showed up to an airport and said "I'll fly your towplane for free so I can build hours" then I would be breaking the regs. On the other hand, I think if you were in a club and it was something you had to because you are in the club then it's a whole different story. You are paying dues to be in the club, and you are probably more interested in flying gliders than building hours towards a job at an airline.
Again, intent is the key here I believe.
I would say call AOPA and ask them their take on it. You could call your FSDO, but you might end up incriminating yourself if you do so.
Cheers
John Herreshoff