There once was an overseas site that was selling 100% pure nicotine along with e-liquid laced with prescription drugs.
Personally, I'm ok with the idea of sleazeballs not getting any free advertising.
I know of a vendor that is still on here and was lacing eliquid with illegal drugs. They are banned from other forums but not ECF? I'm not going to go into details because it happened when I was new on the vaping scene..1 1/2 year ago.