Pricing short usernames on defi.io: $12,999 for one letter, $29 for four, plus two premium tiers by meaning. The hard part wasn't the numbers. It was deciding which names shouldn't cost anything.

给 defi.io 的短用户名定价：一个字母 $12,999，4 位 $29，再按含义加两档精品价。最难的不是定一个数，而是想清楚哪些名字不该收钱。