Yeah, this is something I thought about as soon as the blackout started. I am in the IT world and as soon as it happened, it got really difficult to find certain bits of crucial information, because those bits of info were stored within Reddit comments.
Anyone in the tech world can tell you that besides Stack Overflow and Github, Reddit is right up there among the most leaned-on tech resources these days. Never before was there a bigger forum of tech people discussing their work. Those results were suddenly, instantly no longer valid, and I'm sure I wasn't the only one who noticed that. This is part of why Reddit was scrambling to open subs back up - if more than 2 or 3 weeks went by, Google would have removed those listings from the search.