My #1 problem with delicious was this, right out of their FAQ page which explains that I cannot import and share my current bookmarks:
How do I share all my imported bookmarks?
To make a bookmark public, click the "share" link located on the right of its description. We don't have a "share all" button right now for a few reasons...
So right out of the gate, they are making excuses for why I can't continue to make my bookmarks public via their system. Customer service is not their strong point.
I've been saving my bookmarks online since Netscape was the world's web browser. I'll not waste my time moving thousands of bookmarks one at a time.
If you watch the RSS feed from my delicious account, you will see added bookmarks. That's because I've set diigo to automatically update delicious for me, rather than force others to use the information system I've chosen. The *only* advantage I can find with delicious is its large user base. Thank goodness diigo offers a bridge between systems that lets me do what I want...with the potential for other more exciting features as well.