crosseyed: "That was very clever of you to create that system for your own use."

Thank you. I've long been tweaking sites to make them easier. My best project along those lines was putting a graphical interface of a text-based vampire game. That might have become something that people would pay for but I lost it when my computer died and I didn't have the heart to rewrite it. Since then there are loads of programmers who can do what I do, as you can see by all the apps on your phone.

"You could sell that to people who seriuosly want to block people."

There's a handful of people who would have been interested and maybe a couple of them would have bought me a drink but it would be no money-spinner.