Honestly reddit is pretty bad, much of it feels like an echo chamber/shilling, but when it comes to things not focused on consuming product(e.g. linux) it's pretty helpful and has gotten me out of jams more than I'd care to admit. I think the reason the information is higher quality in those spheres is because there's no incentive to push something. You don't see people pushing a product on you to rip a cd, they just tell you the DD command(results may vary for macos and windows users), wheras in product oriented subreddits I see things being pushed all the time that at second glance are either crap or expensive. Similarly, these SEO sites are simply scraping documentation from oracle, and answers from stack overflow and slapping ads on them to make money. I reckon if reddit users got paid to post we'd see a whole lot more botting.