Just an idea about the UE community development:
Turn answerhub/portfolio_tree/badges whatever else into a publicly recognized and acknowledged RECRUITING or/and PROFESSIONAL SOCIAL NETWORK (sort of mix of Stackoverflow and LinkedIn).
This will probably motivate beginners to join to show off and track their progress with all these badges/portfolio&progress trees and whatever else.
And it will likely also be an initiative for more experienced guys to participate more actively in the community helping less experienced people. Showing off their professional projects perhaps can also make sense.
Thus, the UE community will hopefully have another self-maintaining power to grow and develop.
Maybe something like this already exists, but I think it’s not developed to the extent that it can be easily noticed.