We already have a hard enough mob to fight, we do not need the same one, endangered or enraged, whatever, enraged is hard enough, -1
After reading through the whole OP, the spawn rates or item drops might need to be changed a little. TNT and gunpowder isn't worth searching for one of these
You should start. Really. Posting just a +1 is fine; it shows you agree with/like the suggestion. Posting -1 is not helpful. Use your post to point out what you don't like about it, what is wrong with it, what doesn't make sense, etc. Rather than just shooting down a suggestion, provide reasons and improvements. For exmample, take the suggestion about Staff for a Day. That was shot down but people expanded and changed it into a completely new idea (and a pretty darn good one, at that). That never would have happened if people just posted -1.