I ran into the same issue with my play group. I told them that I will only learn 3 new games a year.
Since I added the rule about a decade ago, we've never once hit the 3 game limit. Just having the rule made them rethink if it was worth learning a new game or playing one we had a lot fun with already.
I suspect we'll address this by just going back to older ranking algorithms for search. We'll go back to the primary signal of good content being links from trusted sources.
People gaming the content based algorithms will eventually cause their own downfall.