I am (was) a very heavy delicious user. Luckily, I backed up my delicious bookmarks a few weeks ago. The export function on the new site doesn't seem to work and if it does, I doubt all my bookmarks will be there.

I started typing out a long laundry list of issues, but it doesn't matter. Suffice it to say the new site is nearly unusable. There is nothing new that is useful for users or that would attract new users, nor is there any revenue model in sight.

I would be surprised if more than 10% of past delicious users stay with the site.