The issue I have with this analogy is that the food here isn't quite that great. Maybe the service is better and it's less crowded and more friendly, but the menu is pretty limited and not everything it serves even matches the fast food's quality. I guess there's merits from being loyal to your local cafeteria and its community even if it's not always the best, but lets not exaggerate the quality being delivered here.
I used to browse reddit for gaming news, especially indie games, and the communities I found for this on Lemmy didn't pick up any momentum yet.