[thesunny]

The feedback on the design section is really helpful. We have been thinking of how to redesign the design section because of the issues with discoverability and these comments clarify some other issues.

The Insert URL issues has been noted. Thanks.

In terms of username, we did this to prevent somebody from just squatting all the good names. But clearly 'sjf' is not something we need to protect. I think we'll just take the most common first names and 1000 or so most common dictionary words and protect them though.