@Miroslav Glavic - I'd like to know in what reality I can go on vacation for a month? Just kidding :) However, you mention the scenario of conflicts multiple times in your post. What I think is interesting is that how would I know those conflicts exist prior to upgrading? What's the difference between manually upgrading the site and discovering those conflicts versus the site automatically upgrading? The only difference between the two is controlling when that update process occurs.

@david - This line of thought that unless WordPress provides an easy way to revert to the previous instance of a site in case an upgrade goes bad is very popular. I'd be willing to go down the automatic upgrade route for everything as long as I had an escape route to put things back to normal.

@Marty Kassowitz - It's important to stress that we are only talking about Automatic core updates for now. Adding themes and plugins would be too much for the first go around and everyone is in agreement that automatic upgrading of themes and plugins are two separate beasts.

@Mike Otgaar - After the 3.5 disaster we (web support team) don’t update WordPress at all until a clients site has been thoroughly tested on an offline mirror site. We like making money, but not from bad decisions made by the good people at WP-HQ

Shouldn't that be something that happens as a normal process regardless of WordPress updates?

@Andrew Nacin - If everything ends up working out as you described, then I see no reason why this wouldn't be something everyone could get on board with. Interesting that instead of introducing UI or anything else for opting in, that the process of upgrading to 3.7 acts as the opt-in process to automatic minor upgrades. If I'm on vacation or away from a device that's able to push the upgrade button for a very important security release, I'd much rather have that security release applied automatically. One less thing I have to worry about.

@darrinb - So what are your thoughts on this Decisions mantra as part of the WordPress development philosophy?