Hmb, hon, I don't think most people subscribe to the blanket admiration of certain professions these days. And that's not necessarily a bad thing, IMO, though I can see it must be infuriating and hurtful if you perceive that a blanket hatred has been set up in its stead.
Personally, I do not and never will respect teachers purely because they are teachers, anymore than I would respect rappers, social workers, artists, ballarinas, bankers, librarians, priests, doctors or tree surgeons automatically, just because they do what they do. Obviously my default position is that everyone is worthy of respect, but that is because of their personhood and whatever they do with that, not their profession per se, ultimately. It's my impression that you get a full range of professional fabness, mediocrity and awfulness whichever area you choose to focus on.
On a site like Mumsnet, where, as Suedonim has said, we are all education consumers and all have an interest and opinion, we may tend to hear slightly more about awful examples of teaching practice rather than the many, many fab ones. I believe and hope that isn't personal though and that the vast majority of mumsnetters respect you and the other teachers on here, hmb, both as great sounding teachers and as a people. That is certainly my position. It'd be a great shame if you stopped posting.