[Dave]

I don't really make use of a proxy trapper, I do it all manually.

I do it like this:
1. Whenver I see a suspicious registration, I enter the IP here: https://ipinfo.io/ and check to which ISP it belongs.
2. I Google the ISP and lookup the main site and see what kind of services they provide.
3. If they provide hosting services, not for home connections, I usually block the whole thing using a custom script I wrote to generate all IP ranges that have to be blocked.
4. After I generated all the IP ranges that have to be blocked, I apply it to a tool called Peerblock (for Windows). Of course it can be applied to iptables on Linux as well.

This will not work if you use something such as Cloudflare though.