The biggest search tragedy is Twitter. There’s an incredible amount of information on that platform but most of it is hard to find because of the awful search.
IMO the real issue with twitter is how it only loads tweets on a page to your monitor size. Impossible to CTRL+F if you know what you're looking for even on the right author's page.
I've seen many more people appending reddit to Google searches.
google should be more worried about reddit getting their search together
Controlling the search pages is of low value compared to staying fixed at the top of Google searches (thanks to obfuscated interaction rankings) by having a lot of people who search dozens of times a day always selecting only your page in Google's responses and of course never applying captcha to a new visitor from Google.