Just tried scrolling a tumblr blog and then got blocked by a "You must login" modal.
No.
Fuck you.
I'm not going to fucking make an account on your insipid little site when I almost never go to it in the first place.
Also, modal popups need to be fucking BLOCKED by web browsers at this point. I hate them. Hate hate hate hate HATE THEM.
@dragonarchitect I second this and raise that browsers should allow us to block specific Javascript function calls; in particular anything that can be used to escape the DOM tree the script lives in.