There is no downside to doing this. There’s no punishment. So the scanners scan, whoever they are, good or bad. Even if ISPs quickly shut this stuff down the e

There is no downside to doing this. There’s no punishment. So the scanners scan, whoever they are, good or bad. Even if ISPs quickly shut this stuff down the existence of botnets would allow it to continue. It’s like spam. Just tragedy of the commons.