You know the type of thing, you research a Wordpress function, you're reading a site and an popup ummm..pops up and says "join us, sign up, newletter, courses, whatever", you press X - thankfully normally in the top right - and carry on.
I realise that I have never (that is really never-ever) followed the CTA. I can't ever recall actually reading one.
Now I have a client for whom this would seem an appropriate solution. It doesn't take up screen, it's a yes or no answer, email field and Submit.
They are an insurance broker, they want the potential customer to fill in the expiry date of their existing policy and, of course, their email address.
Good idea? or just another annoyance?