Agreed. Personally I'm always grateful when someone joins and brings along a good up-to-date idea of how our particular languages/frameworks are used and taught

Agreed. Personally I'm always grateful when someone joins and brings along a good up-to-date idea of how our particular languages/frameworks are used and taught by the rest of the world. It's so easy for a big internal codebase to devolve over time into a bunch of weird patterns, and forcing some newcomer/outsider perspectives onto it is a great corrective force.