As mentioned before, I had written off getting the chance to see any of ICC. During the Burning Crusade expansion, my computer became dated and I found myself unable to raid an instance when it would play like a slide show. I resigned myself to the fact I wouldn't get to see BT. This time I did the same thing with ICC. I've gotten a new computer since then so performance wasn't an issue. But something unexpected came up right around the release of ICC and I pretty much gave up on ICC as well.
But with ICC being out 4 months (?) now, the raid-wide buff that gets greater as time goes on, and main raiders I guess burned out after playing 4 months, I've found myself getting a chance to see the majority of ICC very quickly (basically being carried in -25 but at least able to contribute in -10).
In my first run with a pug we made it up to Dreamwalker and in the second run with the guild's "B Team" we made it up to Sindragosa. In other words, only one boss away from the Lich King.
So now, instead of not getting to see an instance until another expansion is released and a group decided to go back and zerg it, I'm actually getting to experience it while having to put forth some effort.
The debuff is another smart idea on Blizzard part. I remember when some casual players just wanted to see instances not raid them. But I think those players are like me, they had written off being able to raid them, due to time, performance, what have you. So they begged Blizzard for a bone to just be able to see the instance even if loot wasn't part of it.
But I believe if these same people were given the option to fight through ICC as it was intended, albeit watered down with the buffs, they would do so. I know I've appreciated the chance and I can't wait to get to actually fight the Lich King now that he's actually within my grasp.
This is what normal-modes are for. I suggest any casual players who have shied away from raiding to give it a try.
Downloading Fallout 76
2 days ago