I have an even better idea. Why not the industry just maintain a blacklist of trolls? The said troll will not get any support in the IT industry wherever he goe

I have an even better idea. Why not the industry just maintain a blacklist of trolls? The said troll will not get any support in the IT industry wherever he goes across the USA. From hardware to software to networking, the troll will be deprived of services. Not just that, the tech blogs in the industry can also defame the trolls, so one day that understand the consequences and think thrice before trolling.