They changed it because people were using them as likes rather than favourites. I originally used them as "favourites" (for links that I was interested in but

They changed it because people were using them as likes rather than favourites. I originally used them as "favourites" (for links that I was interested in but didn't have time to read now) but others didn't. Twitter catered for the majority and made the list of your favourites harder to get at and started putting things you favourite into other people's timelines. Whilst I preferred how it was originally it is clear to me that this change was motivated by how the community at large used the feature.