Je ne vois pas le rapport entre Loic le Meur et les blogs. C'est un peu comme dire un article sur la Télé sans parler de CNN c'est comme un article sur l'irak sans Doublya.
I would say that being a teacher is not easy everyday. Of course you have a lot of holidays, but I think you need it. I'm not a teacher, but I've seen how bad we can be, and how my professors (expect one) had try everything to keep us in the "good way". This is more than just teaching.
I can't remember one of my teachers going on strike. I'm not sure that "going on strike" is a good solution, but sometimes you have to ring a bell, do something to tell "that's enought".