Cool insight into a (novice?) threat actor's operations and tooling. I personally knew nothing of "residential proxies" like LunaProxy so I learned something new

I personally would be careful about that sort of thing. I would imagine that few people would want to run a proxy on their home computer that can be accessed by others - and if they did, they'd probably have a specific reason for it, and thus would be looking for specific ways to make that proxy available to the people who they feel would want to use it.

So, I can only assume that a lot of residential machines that have proxies on them offered by companies like these have actually had those proxies installed by malware. The company themselves may not even be aware of this.

(I'm not saying that LunaProxy in particular is like this. I actually have never heard of LunaProxy before now, so the above may not even apply to it. Regardless, it's still worth applying caution.)