I've noticed a number of posts dealing with the nature of communication on this site. So I think your comments are interesting.
To answer your closing question, I use this place mainly for the struggles. If I were younger, I'd be posting questions. But I do what I can to answer what I think I might be able to help with, since I have more years behind me than many of the questioners.
On Mamapedia we need to keep in mind that we are communicating anonymously with anonymous people. You and I wouldn't know each other if we met on the street. We don't have all the other cues that we have when we converse with real live folks - cues like facial expression, tone of voice, body language, etc. We might have, in a limited sense, the cue of previous interaction, but that's *very* limited.
What looks likes a rational, reasonable, not-too-serious question when I post it may come across as cold, hot, dumb, or a full-blown vent to you, the reader! (I'm saying "you" in the general sense, of course.)
Although I don't do this - whether *that's* good or bad is something else again - I'm aware that some people on this site will go back to one's previous posts in order to get a better understanding of the current one. That's perfectly reasonable to do; but do I really want you to size me up only by my questions and complaints? That's not the whole me! And yet, because this is an big, overgrown newspaper-advice column, that's all there is to go on.
Our knowledge of each other on this site is very, very limited! "Impersonal" communication has a stubborn way of turning personal for that reason.
There's no knowing what post will hit a nerve with someone, or when. A question I might ask without too much trouble may be just the situation somebody else struggled with last year and still has nightmares about. For instance, if I were to post about an annoyingly rude BIL (that's a safe example because I don't have one), and you've been through you-know-where and back with your rude BIL, your response is going to have more emotional content than I meant to ask for. I may learn more about *you* than I asked for! But that's the nature of the beast.
Even trying to give answers in a rational, friendly, non-judgmental way is difficult to do. Just as you don't know what will strike a sore nerve with me, I don't know what will strike a sore nerve with you. My non-judgmental response may be just what you didn't need this morning, and you feel it's very judgmental indeed. And vice versa.
I guess all I'm saying is that with this format, one has to be prepared for anything.
It may be pretty good for casual, over-the-back-fence advice, if we're willing to see it that way, but I don't know how good it can be, socially, beyond that. If you were actually my neighbor, at some point I'd want to stop with the back fence business and invite you over for tea, or bring tea to your house if you couldn't get away from your work. And online, we can't do that. :^(
(Oh, and don't even TALK to me about mothers-in-law! Oh, wait... never mind. ;^) )