I was getting them every time I opened the site for a while there, but they seem to have stopped after I updated Windows Defender and ran a thorough scan. Don't know if it was coincidence, since WinDef never showed me that I had any adware that needed removing, but it recently stopped.
Also, just a heads-up for yall, twice in the last 2 weeks I have had adware or malware try to download onto my work PC through Armslist. I just tell it "no" or "cancel" when the box pops up, so it doesn't try to run it. Then I update and run WinDef immediately and so far it hasn't showed any problems. That being said, I don't think I'll frequent it for a while, until they get that resolved.