http://superuser.com/questions/725078/7200rpm-hard-drives-and-types-what-makes-them-so-different

The popular answer to this question is a load of rubbish.  Not only is it technically incorrect but there are no sources and yet it has a lot of upvotes.  It is very difficult to disprove something that is so vague, the differences in firmware strategy, etc. happen over time, they arn't neccesarily apparent in benchmarks/noise tests.

How do we deal with people upvoting what they want to hear rather than what is correct?