Since you can register with your old username and password, so as to get the long-term history connection, instead of using the "retro" site (which has a limited life) it's pretty clear to me that they still know who I am.

This isn't about them not being able to transfer the old log-in data.

I wonder if they want to clear out unused accounts and other cruft. They could have done that with a confirmation email system.

As for payment security, I'm not in the USA, and the credit-card business in the UK seems to do quite a few things with much more security. We're not immune to fraud, but there's a couple of routine checks on cardholder-not-present transactions which I rarely see from US sites.

(Paypal? Another US bank operating in the EU, and I wonder if there are cultural issues, on top of any possible faults.)

Smith Micro is the second outfit that has done this sort of thing, making life difficult for customers, in the last six months. In the other case I was flat on my back in hospital over the whole transition period, and when I found out about it I decided this site didn't sell anything I needed anyway.

But since Smith Micro own Poser, I suppose, as a Poser user, I'd be stupid not to sign up.