It's really off-topic for here. "Why aD does this or that" is really on-topic for ars digita forums, not here.
For instance, there's a lot of curiousity about the new license here but this doesn't really seem like the best place to discuss it.
Of course, if people just want to gossip, speculate and bitch we could start up a separate forum at openacs.org entitled "Why did Ars Digita do that?" I'm sure it would be popular!
In other words, this particular forum is labelled "OpenACS" and we should try to stick to that topic.