I think it's all a question of personal character. Some people here write in a subtone as if they knew everything and made millions in hollywood. If you can't stand that, this forum is nothing for you. For my part, I skip over such posts and try to extract the underlying points of critique, not just here in this forum but also in my everyday business life.

There's always people with egos or who just had a bad breakfeast in the morning, but imo it's not worth the energy to get into that and start a war of words, just say thank you, take the valid points from their comments (if you think they are) and move on. That has nothing to do with being a 'sub' to a master, it's just common sense, really.

Whenever you try to get help with something or try to sell yourself, whether it be with your writing or in your regular job, you need to have a thick skin, there will always be someone telling you you suck and what you do is utterly shit. Get over it.