I don't think there is much hostility towards teachers on MN. I would say in general it is pretty supportive of teachers, much more than the general population
Some teachers are crap, I think most people can remember a teacher they disliked. And yes there is the odd teacher who does the whole 'I work harder than you'', its quite annoying. I think in the general public there is the opinion teachers have it easy, and I do think teachers get quite defensive as a result. And perceive one twat who dislikes their sons teacher as 'teacher bashing'.
I have parents who are teachers, I know how hard they work. Its tough, but it can be frustrating when they tell me they have no time to do things when they have 13 weeks off a year and have been on 8 holidays in the last 12 months. When they book a holiday and expect me to be able to come ( no, its august/christmas/easter. When they tell me they need a break, thankgod its half term ( yes I need a break too)
I think its jealousy too. I am jealous of their holidays, the fact no matter how hard it gets there's always a break after 7 weeks. But to be perfectly honest Im paid better than a teacher, and its a difficult job so Im not going to become one
It does get me though when it comes to the holidays (or lockdown) and people start talking about how they need their DC to go back to school. f you can't cope with your kids all day how do you expect a teacher. Imagine 30 parents who all can't cope with their 2 DC!!