I think its true the game could use more challenge. Ideally something that would force players to THINK.
I'm kinda okay with making all content after say 30 a little bit harder. Maybe start small give some bosses vengeance ...
And maybe progressively harder as you get towards 50.
Perhaps you can leave a chunk of it as optional, but I don't think it should be 100% optional.
I think the ship has sailed on IOs and incarnates already in the game.
And except for really late released sets, probably sailed on balancing powersets.
If I don't get my way, will I quit? No. Just my opinion on this topic.
Do I think trolling style thread titles about foreheads and other body parts are helpful? No.