Collections is an ESSENTIAL feature. I don't know what's taking so long to implement it. Socialx (blockchain version of facebook) is under development and they got the hint that a collections feature is necessary. They actually closed their alpha page in order to start working on this feature. Steemit NEEDS this ASAP! Nothing worse than going into someone's steemit profile only to be met with a random feed.. like-posts NEED to be organized together in collections like the feature on Google Plus.