My two PSI:
1. Should I renew my membership to the PADI Diving Society? - If you want to buy what they are selling. I don't think it is terribly good value.
2. When is their "new" website going to be finished? - Never. Eventually they will start a new re-design which will overtake it.
3. Why don't they have a presence here on Scuba board? - Same reason you don't see black people at KKK rallies.
I remember being e-mailed by some PADI marketing guy asking for my views on whether PADI should set up its own message board as a counterpart to SB and DMX, etc. I told them pretty frankly the only way a board becomes popular is if you allow people to speak freely and express opinions you don't like. That is pretty much at odds with the PADI control freakery. Couldn't see them allowing free discussions on solo diving, breaking NDLs, underwater hunting, and all sorts of other things PADI likes to pretend never happen.