kibbutz these were your exact first words on the insomnia thread:
"Oh my word ladies, how comforting it is to meet you all I've only joined Mumsnet today, so am new to the game. I have spent the last 3 hours reading all of your comments! I wish I could say that my sleep problems were a passing phase, but they've been going on for nearly 5 years now...."
and everyone welcomed you and we shared our insomnia woes. How can you say that no one really cares? People DO care, and not everyone in life is out to abuse you, but I realise that what has happened to you has left you with a warped sense of human nature 
Of course you are entitled to your opinion, that "the answer only lies within yourself" and "no one else can really help you with your problems". I can and do accept that this is your opinion. It is a valid opinion and no ones has the right to say you can't hold that opinion.
However, can you also accept that other people hold different opinions? And that just because you do not find the support on here helpful, that other people can and DO find this support helpful?
The reason you were asked to leave lelarose alone was because your posts were not helpful to her (she said it, no one else) and because she was in a very delicate state, no one wanted to see her plummet into despair again because of some thoughtless comments.
Your posts are very confused. On the one hand you are saying you don't want support, you don't agree with mumsnet as a place for mental health support, you don't care what other people think, but at the same time you want your own feelings validated, you hit out with hurt and bitterness when anyone disagrees with you, and rather than walking away and saying "MN is not for me" you keep coming back for more... can you see how contradictory that is?
I really hope you get the support you need in RL, or somehow "find the strength within yourself" to overcome your problems. I know from personal experience that severe mental illness is like being down a huge dark hole, and sometimes no matter how hard you thrash around, you are never going to get out of there on your own.