No, he means he is selling scripts to scam people. By the way, he is selling nulled scripts which usually contain backdoors/vulnerabilities. In a way or another, you will either be hacked, the funds will go to the hacker wallet instead your, or the original developer will contact your host and your site will be shut down.
The OP is using multiple accounts with different domains to promote his craps on the forum
He's not only selling scripts but also selling a whole plan where he hosts the scam for you.
So, you are not even in control of the HYIP scam. You just give him your money while he scams people for you, and keeps all the scammed money at the end. Paying someone to scam other people... while also being scammed. That's a good one.