I really don't give a crap about how people are complaining if there is a legitimate issue behind it (which it usually is...).
Yes, people (I think it would be rather ignorant to relate this ONLY to gamers) like to complain about things, but for all the over the top complaints and people demanding refunds or reporting to BBB/FTC there are a few people who bring up very valid points and offer solutions to the problem.
Just ignore the whiners. Whining solves nothing, and complaining about the complainers is almost as bad. You're pretty much doing the same thing they are, simply complaining without offering any information.
Ideally, the people who can't offer decent points or any solutions to these issues shouldn't post either. The easiest way to say you're not supporting something is to not buy it. Gamers on the internet are a very impressionable bunch (especially the PC gamers, being very tired of being put in as an afterthought, followed by being treated like they're pirates), and they will be up in arms over the slightest of problems.
...and I am perfectly okay with that. The whiners are helping nobody. It's up to you to either say nothing or bring up something positive.
EDIT: Might as well add this isn't a recent trend. Oh god I hope not. If anything, the whining has the potential to encourage an increase in standards. You just joined a gaming forum and have exposed yourself to this. You were capable of ignoring it earlier though.