Newbies or Better information?
Since I love to generalize, I will just go ahead and generalize on my earlier comments by saying that nobody is as smart as all of us. As to your remarks on prisons, though I am not sure how relevant that is to "openness", whole countries have been founded by groups of unwanted "criminals" from other countries... Jane023 13:45, 11 March 2011 (UTC)
Prisons are full of people who don't like to follow instructions made up by other people. In some cases the instructions are unjust, and then they are prisoners of conscience who may be admired in the future. But the typical prisoner is a person who does not cooperate very well with other people, for example someone who disrespects the property rights or personal rights of others. People who frequently get in trouble with the law (in a state with just laws) tend to be impulsive and with an ability to rationalize taking what they want by force. They also tend to be disproportionately young and male, for what it's worth.
I have heard of some countries that gained part of their population from penal colonies. Either those prisoners were well managed by people with fewer criminal tendencies, or enough of them outgrew their criminal tendencies as they aged to form a stable society. When criminals take over everything you may end up with failed state like Somalia.
Openness is great but only when accompanied by good faith and empathy. We want Wikipedia to be as open as possible to everyone who genuinely shares Wikipedia's goals. Most people do not share Wikipedia's goals entirely, and they can only choose to conform to Wikipedia's goals in their editing activity here if they read and understand the detailed description of what Wikipedia wants.
One of Wikipedia's goals, then, is that every editor will read and understand enough of the manuals to understand what Wikipedia is and isn't.
People who come to Wikipedia without any desire to read the friendly manuals are less likely to help, even if they mean well. Unless by some miraculous coincidence their personal goals align with Wikipedia's goals in every detail.