I don't really agree. Specifically for video games, I've found _a lot_ of useful information just by Googling something and the answer being on Reddit. A lot of 'casual' (as in people have just discussed it and not deliberately sought to put it out there) information would be lost if Reddit was wiped after six months.

Yes, other tools might be better for information sharing, but Reddit as a conversation space and Google as a search tool over the top of it is valuable.

Not really: I’ve found very useful information by using Google and just having site:reddit.com, and or using the iffy reddit search bar. The benefit of having a voting system is that ancient gems will always get bubbled up.