"We made Persona a user-visible brand but that competed with a site's own brand." This would indeed have been the main reason for me not to use it. I have not

"We made Persona a user-visible brand but that competed with a site's own brand." This would indeed have been the main reason for me not to use it. I have not been in a position to implement login functionalities recently, but when I do, I will still strongly consider Persona, and even more so if the Persona brand can become almost invisible as it says in the post.