system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How has the identity of artist "Banksy" not been found out? Also how do people differentiate authentic works from imitators?

Inspired by the recent posts about Banksy, I decided to read his wiki. I'm so confused as to how we have so much information about him yet no identity. Also how do we know the information we have is valid? I'm just lost as to how this works in this day and age.
gpt
Banksy has his own website and crew that he works with that handle media stuff. They put out press release and establish websites that showcase his official work. 

Authenticating his works is very difficult. Many counterfeits are out there.