Earlier quoted context omitted.
It won't work. The scam artists and the spammers will learn how to spoof their IP address. Or, just start using VPNs and proxies. It doesn't matter to them as they will find a way around, precisely because their livelihood depends on it. On the other hand, the genuine users will be the one who suffer. They simply won't have the inclination to spend their entire time trying to engage in subterfuge against your "defens…
You can't spoof an IP address and expect to get the traffic back. They could use VPNs and proxies, and that would shift the focus from the third world to VPNs and proxies in the first world. If those operators don't comply, you could have them IP filtered also. But also - we have better options for dealing with nasty traffic when the originating IP is in the first world. It doesn't matter to them as they will find a…
If you make just the right investments in nigeria then over time this will change. Everything else is temporarily. You might even figure out a way to use machine learning to statistically weed out the spammers visits by looking at how and where they click (bots and humans), but that peace will last for only so long.
The lasting solution would be to address the root cause of this, which is something I just don't know and understand. (I might not know what the solutions are, but I can see what isn't a solution)