Create account only during checkout?

I have not installed the Responsive shop yet I am still on ShopperPress 5.something, because I made a bunch of mods to it.

I am going to switch this week.

Can users be limited to being created only during checkout for a purchase?

If I use plugins based on time it takes to fill out forms, I’m finding that I’m blocking legitimate users too. People using autofill .. fill out forms fast.

There are a few other eCommerce solutions that do NOT use WordPress accounts, rather they use their own. WordPress has become such a target it seems.

The other thing being it’s 99% hotmail accounts. I’m considering a hack to just block hotmail at this point.