Yesterday my computer was infected by a virus, most likely from one of the dA ads (it's the only site I was browsing). It was some sort of redirector trying to sucker the victim into getting "perfect defender" anti-virus (which is a scam, don't bother looking it up). How ironic. This is a 5 year old windows installation that has never had a single virus on it so it's unlikely I installed it myself.
And then it just happened again a few minutes ago: I logout of my dA account and get redirected to some moronic fake computer scan page trying to make me believe my computer is infected. Which it isn't (well not anymore).
It seems like dA is using some rather unreliable ad providers