PERF: Enable new user card route by default (PR #9442)

https://meta.discourse.org/t/changes-to-the-user-card-data-source/139951

GitHub

Why not remove this arg altogether and the logic associated with it?

These are arguments for User.findByUsername. We often need to use that function for non-user-card things, so I think we need to keep the arg

Ah I see, thanks for the clarification.