I don't like the phone home feature. It's not something I've run into before. I have run into software where they take the license server offline for older versions, which forces you to upgrade if you want to install the software on a new computer, which I find pretty infuriating. But to actually have a working version stop working is not common, unless it's a subscription plan.

I suspect DRM is really the least of it. They did leave the door open to going to a subscription model in the future, like Adobe and Vue have. Obviously, phoning home would be necessary in that case. And closer to home...it sounds like they're trying integrate the RMP into Poser, with the ability to shop, buy, and install items from inside the program. An active Internet connection would be key to that plan.