If you're using it for product research, probably not the best idea - I'm betting that people who append site:reddit.com to their queries are not the only ones

If you're using it for product research, probably not the best idea - I'm betting that people who append site:reddit.com to their queries are not the only ones who've noticed it being a better place to find information sometimes... marketers will, if not, already have, heavily infiltrated popular subreddits, especially to manufacture consensus on good products.