I think nobody should be allowed to register on codeforces with email accounts that aren't from Gmail, Hotmail, or Yahoo mail. What's the point when you ban someone for cheating when they could just get a disposable email, create another alt account and continue cheating? As far as i know, you'd need a sh*t ton of phone numbers at your disposal to create multiple email accounts on Gmail because you can not use one phone number more than once for verification. I know this would not entirely solve the problem of cheating, but it'll go a very very long way in drastically reducing that disgusting act because it's currently an eye sore. An IP ban?

I know this might sound discriminatory but i also think stricter measures need to be taken for people that are from certain countries where the epidemic of cheating is more prevalent.