I'm wondering if anyone is using these. They seem a little dated at this point and I am considering removing them.
I dont use
I don't and I haven't seen anyone using them either.
If you mean image popup, I use it with lightbox.
See here and click on a pic: www.silent-gardens.com
I'm more concerned about the pages that actually popup, I forget when exactly, but I think if you click the comments link a whole new page would pop up in a new window. Its listed as one of the preferences so whatever that checkbox does.
I did not like the comment pop-ups. I like to see them just under the referenced article. Good idea to put the choice in the preferences.