[sillysaurus3]

Depends what you're bookmarking. Some people value their privacy. A bookmarking service probably knows almost as much about your political affiliations, your sexual orientation, etc as Facebook or Google does, after you use it for a couple years. I trust Maciej not to exploit that information.

So it's not really about whether another bookmarking service can deliver or not, for me. It's whether they're faithful steward.