The problem with LFD is the randomness. Give every player the control to either host or join would be great in my opnion.
Yes, it is highly used for Mythic, because you can't que up for that. Make mythic queable and you will see that section be pretty abandoned. Yet i really the dungeon LFG section, because you will see some people, who have really made starting a group into an art. Would love if people were forced into doing that too with normal/heroic dungeons.
Yep! Or atleast make it on the same lvl as LFD...... Wait, you can just join the LFD tool with a group for the random bonus anyway xD So scrap that. Just really don't like the queing into a random people, that is pretty much all.