The answers links will be nice to be opened on another window/tab. At least all links that not point to stackoverflow.

Private messaging between users would be pretty cool...

When I copy a block of code from a question that has a formatted code block into my IDE or text editor, it loses all formatting and just pastes as a single long line of text. I then have to manually add the carriage returns/formatting.

Cheers
Kev

When I'm typing code into the WMD editor, it would be nice to be able to use the TAB key within the text box, rather than having it jump down to the Tags text box.

See: http://beta.stackoverflow.com/questions/3362/javascript-capturing-tab-key-in-text-box

Add an additional method to open an account that is not dependent on OpenID. Visitors should have the option if they do not support single sign on.

In order to keep the signal:noise ratio pretty high, I think exact duplicates should result in a pretty heavy karma burn. There is no real reason why someone should post a duplicate question, all things considered- there's a very well designed search feature. Moderators with high enough karma should be able to flag a duplicate (like they currently do) but there should be a heavy (say 30 point) burn for posting exact questions ( "What are the best programming books" or "Hidden features of C#" are examples of dupes that pop up on a regular basis)

Almost every site has these. If you like the answers/knowledge of someone, why can't you private message and become friends with them?

Altough I had a full persona set up in MyOpenID, StackOverflow didn't get my persona name, and I had to type it myself. In MyOpenID, I only had my full name filled, not my nickname (because I use my full name anyway), so maybe that's the cause. The site didn't get some data like my birthday and webpage, but I don't know if they are standard for OpenID or exclusive for MyOpenID.

I like the fuzzy timestamps (0 sec ago) etc, but ones that quietly update themselves with javascript are better :).

Timeago (http://timeago.yarp.com/) is a jquery plugin that provides just that

Use cases:

1. Programming puzzles. This way the answer can be posted the same time as the question, eliminating doubt that no answer is possible for hard questions and proving that the question is not a homework exercise (since the author already has the answer)

2. The socratic method. In your answer you can ask a leading question, and then once the reader has a guess they can click to reveal the answer.

The current website badge/banner/graphic is short and wide. It doesn't fit nicely in my web page layout. Please provide an alternative that is taller and thinner.

this would be a great way for users to share their knowledge and make SO a better place. Submitted knowledge should be in a different place from the questions so users can view it as they please. Tutorials could be submitted to the community for approval in one forum, and if they garner enough upvotes they can be put in a section for "accepted" tutorials. This would help with faqs as well.

I have SO account with an openid and an email. I have created a new account with meta SO using the same OpenID. So now I would like to use my email address to get my avatar and stuff - but mSO complains that this email has already been used...

"Gold Badges are rare. You'll have to not only participate but be skilled and knowledgeable to earn these. They're something of an accomplishment!"

You don't have to be skilled or knowledgeable to visit the site 100 days in a row.

"Silver badges are earned for longer term goals. Silver badges are uncommon, but definitely attainable if you’re interested enough."

That's more like it. The Fanatic badge should be silver.

"Bronze badges are earned for basic use of the Stack Overflow site; they are relatively easy to earn."

The Enthusiast badge should be bronze.

Add a curiosity badge when views of user page exceeds reputation points.

There are a lot of questions that get closed as "belongs on uservoice" that would simply not exist if the search results and Related Question hints that show up when you ask a question simply included the UserVoice questions as well. Many of them are legitimate questions about the use or etiquette of SO. New users aren't familiar with UserVoice. While the "feedback always welcome" link is inviting for offering feedback, its not obvious that it's the location for asking questions about the site.

I have run into, on several occasions, community wiki questions that are closed. This, to me, seems to defeat the whole point of the community wiki - the entire community should be able to contribute, and not have the question closed.

I believe that SO should automatically ensure that when a question goes community wiki, that it is un-closed. It will encourage greater community good will.