Someone has recreantly been spamming ads for stories. And there is no option to reports those stories.
Here are a few examples.
https://www.mycast.io/stories/mdma-42542-10-9-delivery-guaranteed
https://www.mycast.io/stories/eutylone-802855-66-9-safe-transportation
https://www.mycast.io/stories/metonitazene-14680-51-4-high-quality
https://www.mycast.io/stories/adbb-abundant-precursors
And those are just the most recent ones.

Hello, i'm a mod here. this has been going on for a year. There were spammer accounts who spammed these ad stories, supposedly for the intention to scam users of this site. Most of the ones you mentioned have been taken down, but that's the only thing the admins/mods can do for now, as there has yet to be a way that will prevent spammers like these from invading the site. Thank you for the info

https://www.mycast.io/stories/disguise-team
https://www.mycast.io/stories/p/AOmuUaWqj01N2LHiDdl-Mg
one link shows an error and the other shows the story and the story is a fake story so someone has to take it down.