I guess the answer to how much opinion can be stomached is entirely up to the person taking it in.  There are so many blogs, newsletters and even forums with TONS of information out there that anyone who counts on any one source is at risk of getting taken for a ride in some way or another.

Personally I think on a Social Network environment like Sphinn there is room for opinions all the time regardless who they come from or how accurate they are.  For example, I may have ran a test for a certain keyword and achieved a certain desired result.  If I then turn around and blog about it it is still my opinion even if it was a sure thing for me.  If anyone takes my words as gold then i'd be concerned because even I have to rely on other peoples opinions.

Should an entire discussion be avoided for fear of making enemies?  No absolutely not, however i'm not so sure dirty laundry improves the quality of this social network (or other mediums) and it certainly doesn't get you any favor with anyone who may side with the other person.

Positive outcome.. hard to say, I doubt one opinionated post of someone in the industry is going to cause the entire industry to go up in arms and want to start publically pointing fingers.

What are your thoughts Little Miss SEO?  If it were Danny that you had a disagreement with, would you call it out publically where his 'SEO Clan' could attack it or would you keep it to yourself and maybe a few trusted individuals?

If I have a problem with anyone, I tend to keep it to myself and share it with only a few selected people that I think I can trust or feel would benefit from what I have to say but in this case that would be inner circle and not an entire network.

- 10 Minutes of Marketing