Can we hide server resources from the public?

There is no functionality built in to do this, this server is likely using a ‘hacked’ server build.

Having a misleading resource listing is a violation of the purpose of the server list and will get your server blocked. I’ve just submitted this ‘Agrio RP’ server to the compliance team to be blocked, so, uh, thanks for the report.

This server doesn’t even have a weird resource list currently, assuming you mean this one: Cfx.re Server List

When and where did you get this screenshot?