Reason is simple: AI
1.You can now trivially create an avatar photo, of any level of attractiveness, of any race, of any age. You can even reproduce the same character reliably in different environments/costumes via stable diffusion + LORA. 2. You can now easily create a comment history on that account, thanks to ChatGPT. 3. You can even produce voices reliably with just a few samples.
There's no real defense against AI impersonation at scale, except for charging-for-verification. The money drastically increases the cost for impersonators and scammers/catfishers, and provides resources on the other end to moderate impersonation.