Accepting the fact that some folks like combos & some folks do not is a good starting place.
I've read the first couple pages and will muscle through the rest.
It seems many valid points have been made regarding why some folks don't like some combo mechanics.
Two points:
#1) Myself, and it seems others, dislike a combo mechanic or gimmicks that essentially force players to do something or penalize players for not doing something.
#2) I dislike forcing gimmicks or new combo mechanics on existing power sets that don't have them. (just make a friggin' new powerset)
I don't begrudge existing combo sets.
I haven't seen folks out there insisting that Dual Blades or Staff get revamped and lose the combos,
but I do see folks saying some set doesn't have a combo, we should add one. Why is that?