Yeesh. No.
In no small part, because then there would be NO answers. No matter what the response is, it can be read sarcastically/ snarky/ snobbishly. And HOW it's read usually depends on the person reading it.
Flaming, otoh, is different. But rude and blunt? I don't think so
I used to worry that whenever people started talking about rude posters, that they were talking about me. At some point I just laughed and realized some probably were, and some would never mean me. Totally depends on the perspective of the reader.
((Just for example; a time honored tradition of becoming a more relaxed parent... is to have more children. First time parents are NOTORIOUSLY uptight and worried about everything. Someone mentioned this, however, when someone was asking about how to become a more relaxed parent... and got upbraided up oneside and slashed down the other for being rude. Ummmm. And yet? How many parents of more than one child are more relaxed with #2, #3, etc? Most. I have an only child.... but even with him... as he grows older I'm soooo much more relaxed than I was when parenting was new! And I'm still far more uptight than my friends and relatives with multiple kids! IN MY MIND that piece of advice was sound. In OTHER people's mind, that piece of advice was beyond rude.))
I LIKE the difference of opinions here. It's why I stay. If everyone parented like me, had lives just like me, spoke just like me, thought just like me... I'd be beyond bored.