Itch does not have a technical support message board. You are not answered by Itch staff here. What the community moderator was talking about: there are sites that scrape the Itch catalogue of games and try selling access to that.

You need to contact support and tell them the situation, best with any proofs how the Itch account is engaging in illegal activity. Judging by a quick glance, it might not be something the offending site has on it, but the site itself, and they use Itch to handle payments. Looks a bit fishy and might be an impostor site.

 If it is an urgent matter, you might want to include the ticket number you got in any thread here, to increase chances the request does not get buried under all the other requests.

Itch is a download store. Anyone can open an account and sell things that can be downloaded. Typically games. But also comics and even pdf files that contain information.

There are two ways selling work. Either with collected by Itch and requested payouts, or direct-to-you. This would be the "connection" you wanted to know, I guess.

I am not sure what you meant with the paypal link. Did you follow a paypal link and land on the Itch page? It should be the other way round, as paypal is the main service provider transactions are handled. If there is only paypal offered as a payment option, than it should be the direct-to-you option.

Read here for more information  https://itch.io/docs/creators/payments