I am not sure myself, heck, when i see lonks in posts here i cringe to click, since i am at work, they monitor everyone as to where they go.
One time i received an e-mail and i clicked on it, took over the Audio on my PC and it said:
"Whoo Hooo, hey look guys!!!! I got PORN!!!!"
As loud as my PC speakers could kick out!!!
Needless to say, working in a cube farm with programmers, you can hear a pin drop across the room.
No doubt there was a rush to my cube!!!
So, when i see posts that have a link in them, i have to avoid launching since i have no idea where it will take me to, in addition to Pop-up's.