Wait until you come across a website that pops up a little window asking you to “subscribe”, and if you click not to they automatically send you to another section where you are forcibly shown how much it will ‘benefit’ you to subscribe -and if you attempt to close the window, you will get an annoying little popup that states:
“It seems (such-and-such website) has detected that you wish to leave this site. Are you certain you wish to do so?”
“Are you really sure?”
“Really, really sure? Because it would be so wonderful if you stayed here and browsed more... Would you like to subscribe to our email list?”
“No, really, you would like it very much!”
Etcetera...
I’ve seen plenty of them on all kinds of sites. When I call them kinetic, that is overstating it. The motion is often subtle, which is what is really irritating.