I actually respectfully disagree! I think that if someone is to make any significant purchase in their life, they should take the time and do some research about what's viable in the current moment. Having a thread like this already indexed and everything is important for people to start looking for things they might want to own sooner than later; hell that's literally why Reddit is so popular.
I do agree, though, that some replies on Lemmy are simply complete ass. However, if you take everyone's words as the absolute truth, you may not be ready to participate in forums, so I don't think this is a big issue.