Full Page adverts? No thanks

Had been using this for a couple of years. Then suddenly out of the blue it’s updated and the first thing you get is a full page advert for their paid service. You have to set up an account to see that they seriously want $15 a month from you.

They claim that the product still works as before and you can ignore the paid option, but I couldn’t get it to work.

So uninstalled and another product installed.

I seriously question that this plugin should still be allowed in the WordPress Plugin Repository.