Reno - 5:49 am on Jan 23, 2012 (gmt 0)
What's preventing Google from providing precise guidelines and samples before they implement a disruption
Short answer: Nothing
But we all know by now that with chaos & uncertainty comes power and control, and that no doubt outweighs any "moral" considerations. This worldwide corporation only needs to be one thing, and that is profitable enough to make the major stockholders happy. End of story.
I'm grateful for WMT and wish thy would consider ideas such as those you've presented, but the fact is, making webmasters happy means less than zero to the corporate charter.
I've been beating the "clarity" drum for years, but it's an exercise in futility. They have no intention of providing meaningful guidelines along with their periodic updates. It's frustrating watching our businesses/incomes yo-yo with every new algo shift, and your suggestions Whitey would help even things out, but I see absolutely no evidence that the Google status quo will change any time soon.
And I'll be genuinely surprised if anyone here has a glimmer of hope to the contrary.