Thanks for voicing out what probably a lot of us users are thinking, but haven't had the chance to say. I am totally for your suggestions of a 'favourite' tag and an inbuilt instant-messenger chat function.
Unfortunately, I don't have the skills or know-how to do this, so just passive support here! ;)
Thank you, it's so happy to have someone sharing the same view. I don't have the skills either, it all depends on @jesta xD