Echo chambers: exist.

The Reddit format also favors hype and content with quick turnaround. (I'm comparing it to classic forums where you can have long discussions that last more than a few hours/days but weeks/months.)

In my experience (years in places such as /r/mechanicalkeyboards), it's very easy to get downvoted for posting only factual information (yes, not being snarky either), not to mention skepticism wrt latest hypetrain.