How to fix smurfing

Title

Play with me, I smurf the smurfers peak

Impossible to fix unless you tie a government id to your account like Korea does

account buying, hope this helps

let me carry you i smurf derkes peak

One account per phone number

KR system will prolly help in someway if implemented in other regions

Make it against the TOS and punish ppl severly for it(long main acc bans). Also atleast ask for a phone number for 2FA.

This sounds really hard, but in what way will we ever stop people to smurf unless they face big consequences?