Comment by bsnnkv

It's a bookmarking service so people rarely search - they just throw stuff into a bucket that they'll probably never go back to for the rest of their lives :)

I picked MS primarily because I was impressed with the quality of search results across multiple languages - even if this were a more search-heavy service, I would probably still pick MS because high quality multilingual search results will always have the highest importance for me as a multilingual person.