Nice, thank you for the suggestion.
I had heard about this method but I'm not sure that I support it.
As a network analyst, we do network access control based on MAC addresses. Vendors (like Microsoft, Cisco, Dell, HP, etc) have something called an OUI - organizationally unique identifier. What this means is that the first 6 characters (out of 12) in any MAC address ever will depict the host/machines manufacturer or vendor.
What this means to us is this: If Microsoft comes out with a security camera, ALL OF their security cameras now will have the OUI of ac:1a:44:X:X:X (where x.x.x is the host mac address portion). Now....these devices all can be automatically administered based on vendor OUI.... I can create a network access control rule to say, block any MAC address that hits my network with the OUI of ac:1a:44*. The * wildcard demeans that any character at all after ac:1a:44 will result in the rule being hit and that device being profiled/blocked.
How does that translate to botting in Runescape? I can guarantee you that Jagex has means to identify and take actions against easy to spot patterns like this. If they notice 3 accounts are woodcutting at the same spot, same gear, same stats - 4 accounts are fishing in the same way, and 5 accounts are mining in the same way - ALL of which are accounts created with the FakeGmailAcc1@gmail.com, FakeGmailAcc2@gmail.com, and so on, it's INCREDIBLY easy for them to take action on all accounts. Now you just lost your entire bot farm in one single swoop. Plus any account of your that interacts with those accounts, based on IP address, credit card info, emails, in-game transactions, you can consider all those accounts banned.
So this method may very well work for suicide farms - to me right now that's the only way I can see this method being useful. But that's ultimately not how I'm looking to proceed. I want clean and unique gmail and OSRS accounts.