This was seriously jarring to me. I use disqus so having low quality, taboola-looking ads just appear on my site one day was very upsetting. I thought something had gone seriously wrong.
Turns out Disqus just wanted to advertise without asking me.
With this solution they can't outside the comments because their JavaScript does not run on the page directly.
Maybe next they can figure out how to stop the spam posts that promote earning thousands while working from home.
It really is confusing to me why this problem is so hard to fix. 95% of their spam could be fixed with simple rules e.g. Blocking specific posted domains.
They just need to use that one weird trick to stop spammers!