Still, for that one shot, they've got an advantage over a regular user, and that's highly unfair and the crashing script worked once, and caused many distress across servers, and you say that you support the use of these mods?
Betty is a threat to their server, he is a troublemaker that has caused mischief on many different servers, using keys to cause trouble intentionally. Anyone who supports Betty or uses the name or a name of someone who co-operates with them, should be careful and if they're not then they deserve to be banned. About those who you personally, it was fair for them to be banned: they know the consequences of being associated with Betty, and they have been punished accordingly.
"Stop hunting them and they will leave you alone". No, just no. If we leave him alone, he will just create more hacks and just cause more conflict within servers. That's like saying leave Hitler alone and he will stop exterminating the Jewish. It's never gonna happen. And shame on you for supporting Betty.