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Ecchi, let me give you a "real world" example of IP blocking.
Let's say you run a restaurant, and you deliver. There is a certain apartment building in your neighborhood that has, hmmm, 255 apartments. Over a year, you make about 100 deliveries, and about 75 of them turn out to be fake, or people rob the driver, or people try to steal the driver's car, or they call 100 times per day to order food but never answer the door.
Would it not be reasonable to say "I don't deliver to that building anymore"?
YES, I know... keep a long list of individual apartments that caused trouble. Every time someone calls, go through that long list and look to see if that apartment has given you trouble before. Make sure that the current resident isn't someone who moved to another floor... then you might find the ONE GOOD CUSTOMER in a building full of theives and liars.
Nope. Ban the building, move on.
In our buisness, it's the same thing. We ban IPs, we ban hosts, and we ban domains. - often banning all domains from the same owner even if they have never submitted to us. Why? Because our time is worth something, and it isn't worth our effort to try to find the one good submitter in a pile of liars, autosubmitters, and theives.
We are not doing this randomly. This is experience in action.
Alex
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