I know of one colony that's behind a firewall at work. So they all look the same. Not a huge colony, but larger than 2-3.
Then there's "limit by ip" that's awkward for people with dialups/cablemodems. They've got a different ip every time they connect (though over time, there will be overlap from the same service provider), and that's the sort of folk we're already dealing with with the "anonymous" 10's.
I appreciate your thoughts on this, but my take is that it's a fair amount of effort for something that I don't see as helping, and I do see as potentially hurting.
On the other hand, I do need to vet the emails. Those are getting annoying (bounces, etc).
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