I like the way you look at the things, very positive. The way I see, its experience is rubbish I can't even use it effectively :) All I want is to bookmark stuff and then go back and find them. Isn't that supposed to be core feature of a bookmarking website, what's it good for if the flow for that is simply bad, unpolished?
Me personally - I use pinboard to 'bookmark' things I want to buy, I use Pocket for things I want to read, and I used Feedly for the river.
How you mix that up is, and should be, up to you...