See and that's why I tend to go with fewer, but really long posts when I talk about stuff...I will take this post as validation to continue doing that!
Seriously though, I think this whole short form trend is what is causing some of what you're saying...not just because people feel like they need to say something, anything and the barrier for providing input is so low with it being like 140 characters...but really, there are a lot of times you realize what you're saying in those 140 characters makes no sense as you drill down in a longer form post, and you can basically tear down your initial premise that way and come up with an idea that actually makes sense in the end.
Of course, if it's too long and nobody reads it, that also reminds me of that tree in the woods that nobody hears fall...or if that doesn't make sense, does a one handed clap make a sound?