Sure, influencers and celebrities benefit from the broadcast without a doubt but is it possible that the back and forth conversation is limited (post, possibly a reply, and that is usually the end of it) to make the rest of the user base just feel like they have been heard. Of course there are consumers and contributors in the mix but I would like to think that more value could exist via real conversations.

Good point - I can't find anything twitter does better for me than my current behaviour, but if others do then that's great; I might find a use for it in future.