The internet has no real rules to govern it. We all hope that folks will be on their best behavior when they come out to play in it's murky waters. Unfortunately, the occasional petty tyrant/freak will rear his or her ugly head and attempt to force conformity. Knitting and blogging are hobbies and, like any hobby, folks have they're own way about doing them. There is no deep, philosophical meanings behind either act. If you want to get up in arms about something, let's talk about war, poverty, starvation, the millions dying every year of preventable disease. Those are topics that demand heated debate, not one person's opinion on a hobby for god's sake.
Blog or knit because you love it. Because it relieves stress/is fun/is a creative outlet...to do either without something positive behind it is foolish and destructive. If anyone does happen to read my blog and doesn't like what I've said, screw off. I'm not writing to please you anyway. (Thought I should end on a childish note. Pretty childish, huh?)