I saw your comment over on that Promoted group (I had blocked the group and now I can't seem to comment on the page anymore, though I doubt that will stop any of the spam notifications in my inbox...)
I wanted to say that I've had a lot of problems with the ads on DA for a long time. It's what ultimately led me to leave my initial gallery. It kept trying to give me malware, and I could never leave any DA tab open unattended.
Recently I've found that Adblock works WONDERS!
No more ads, no more malware. I wish I had installed it on my browser sooner. If you don't have it, I highly recommend it.
I don't know why DA hasn't made much of an effort in removing all this malware (or at least it seems that way to me). I had sent out reports years ago but nothing ever came from it. The most annoying ads were the ones that hijacked my browser, and wouldn't let me close it without installing a bogus "flash update". I had to use the Task Manager, or reboot just to get the window closed without clicking on it. So frustrating.