With the larger use of forums and blogs, it's just easier for everyone to express how they feel about X or Y game. Which is, to a certain extent, a very good thing because I've always thought that the more opinion you can get on something, the better you will be able to actually evaluate its quality without actually playing it directly, in the case of a game, or simply experiencing it (movie, car, food, etc.).
I honestly don't care if someone calls a game or a gaming system overrated/underrated/greatest ever/worst ever/whatever, as long as he or she can defend his or her point to a certain extent. If the only way you can defend a game or system you love is by stating : "Gretast gam eva!!1!11! Pwns all others!1@!1!!" [sic] I would have a hard time believing you, even if it's a game I love as well.
I'm not asking each and everyone to write a 3000-words essay on why this game deserves praise, but at least try and put together a complete and decent sentence, and preferably more than one. I do like and read people's opinions on games, because professional reviewers, even very good ones like some here a GS and the ones over at GT, are human beings and therefore limited by their taste, their own experience and various other factors. Let me hear/read what you have to say about a game or a system, but do it in an intelligent and decent manner, not like that dude who once used "Halo 3 has trucks with different colors" (I'm not kidding) as an argument to prove it was superior to MGS4 (I'm not saying it is or isn't, just citing someone). I would like to believe you when you say that Halo 3 is a good game (haven't played it), but this isn't helping. Tell me about the online modes, the leveling up system if there's one, the storyline, the voice acting, the graphics, the set pieces, etc. That, to me, is the main problem with the accessibility of an Internet audience.
You could also add the fact that there are a lot of people who will criticize something just because it's a trend. Easiest example : Call of Duty. It's very trendy now to criticize CoD and Activision, but most people are simply using the same arguments over and over and I doubt a lot of them actually felt the same way BEFORE they read or heard someone else first. I played MW2 when it came out, thought the story was horrible, then realized over the next few days that a lot of reviewers and players were thinking the exact same thing. It's kinda comforting, but if I loved the story and the campaign, I won't suddenly change my opinion to fit the mass. You can doubt yourself, do a little self-research, but by all means do not lie to yourself to please the audience.