This is slightly ridiculous. How many of you have got a virus while being on minecraftforum.net ?!
I find that at planetminecraft you are slightly paranoid.
It is like for Download links. You're not allowed to upload to bit.ly?! WTF?! Things like (Adfly or adfocus) I understand (mind you, maybe some people want to get paid for their hard work), but seriously, bit.ly. same thing for dropbox. You can't do direct links to the file, No it has to pass through dropbox.com, not dl.dropoxusercontent.
Oh and by the way I tried to write adfly properly, and this is what it writes instead: (Ad link removed)