Blocking other search engines will hurt Reddit, all else held equal. But not by that much. Google is seriously dominant in the search engine market.

kagis

Yeah.

https://gs.statcounter.com/search-engine-market-share

According to this, Google has 91.06% of the search engine market. So for Reddit, they’re talking about cutting themselves off from a little under 9% of people searching out there. Which…I mean, it isn’t insignificant, but it isn’t likely gonna hurt them all that badly.