The problem is (as with 40k and other hobbies) is that you are on the website for the game. This means you, and everyone else on here, has already gone one step beyond merely PLAYING the game, and are looking to IMPROVE at the game. People who simply buy the models, chat bollocks with their mates, and have fun once a week on a dining room table are ABSOLUTELY having just as much fun as people who play competitively, and getting as much out of the hobby, and so on.
But you won't see them on the forums, because unless they want to ask a rules question they can't work out themselves, they won't ever come online. It's not something that either enters their head, or that they want to spend time doing.
That means the forums tend to be skewed (however heavily, depending on the hobby in question) towards those who take it more seriously, and consequently there is less focus on designing plot-central lists such as Rogue Squadron, or building the second Death Star run with Tycho, Wedge and Lando, or the Imperial 181st over Brentaal, and more focus on abusing Whisper, Fat Dash and Howlrunner. That's what I've picked up from spending just a couple of days on here.
So long as people remember that everyone has a valid view of the game, whether it's efficiency or narrative, we can all get along and have a good time. Start threads that interest you, or contribute to others. Ignore ones that don't. When someone posts something that runs counter to your outlook, say "Thanks very much for your input, but..." instead of getting all elitist about it. You can all have different opinions and no-one has to be right or wrong, unless you're talking mathematics.
I don't play in tournaments ever I play with friends once a week and don't use meta lists yet I'm here on the forum.
I played 40k with the same friends once a week until 7th ed came out and I was on all kinds of forums.
I know I'm not alone here in being a non tournament player who likes talking about the game, now as I play with friends I'm free to proxy stuff as long as it's been spoiled so I don't need to buy the raider or any other ship just for the card.
So while it may be a few tourney players that feel hard done by I don't think you can say it's all competitive players moaning.
