If they actually verified identity documents then it would make more sense. Looks like Stripe will do it for a one-time fee of $1.50, so surely Twitter could do

If they actually verified identity documents then it would make more sense. Looks like Stripe will do it for a one-time fee of $1.50, so surely Twitter could do it for $8 a month. Charging a credit card doesn’t verify identity, but it does make creating spam accounts more expensive in bulk. It seems hard to explain that benefit to users, though, particularly at the price they’re charging for it.