First wanted to start off and say Activated is really busy with school, once he gets some breaks he will start working on more constant updates.
The Bossbar idea, I can look into though I am not sure that the current API we use would work for such a feature, especially since it needs to support 1.7-1.8.
In terms of removing useless stuff, almost all features which are included currently have been requested by users, and are essential to a few people. I will look into adding options to disable such features. Which would you like to see have toggles for?