Ok ok had to laugh a few times here. So i try to be as polite as i can be and give u some PRIME EXAMPLES from my past encounters with what u call "killing fun in the game" sir.
- We are doing Amdapor, the healer didn´t even borther to go into wanders palace for the ilvl55 Gear, so we just wipe at the 2nd Boss because he dies very fast - due to gear he has "low-life" and less "heal" so naturally if we were a normal PUG and not a 3man darklight group we would wipe till the dungeon timer runs out on the 2nd Boss. In our case the healer dies right after the Bees die and we still kill the Boss w/o a healer.. sounds that fun to you? I hope not.
- Next one is Garuda Version of course. PPl kill with level Gear Ifrit so hey, now they can q with the same "lvl 45" AF low end Gear Garuda right? Harder Boss but same gear... when the healer goes oom in p2 right again fun for u right? They will just outskill the content... but wait he can´t he has only X amount of MP and X amount of heal with that gear.
- Now to Titan, where it gets even worse. Somehow the healer got LUCK on Garuda and had a premade group of 6ppl maybe carry him through. Now he can go Titan. GREAT. AF gear lvl 45 and hes on Titan with 2,7k Life. He will go OOM, he will die to the stomps after the heart, and as u know, u get only 2 HEALER on DF on Titan. So say goodbye to the kill, cause its impossible to carry a healer in that particual encounter anymore.
And now u come in and say the Ilvl req. for dungeons ruin the game? Did they in WoW? Surely not as are still 7Mio playing that game.
U see, 1 guy with low-end gear can ruin 7 other ppl in an dungeon. It takes only 1 guy. Now think about 2-3 low-end geared ppl on Titan. ITS IMPOSSIBLE. U wont have enough dmg even with LB3 on the heart etc..
So now a secret: An MMORPGS progression is all around getting your character pimped, difficult content will get progressively easier with gear and so u need to have better gear for a more challenging content - thats a fact and not a thesis like u do with your "kill all the fun with the gearscore" which is simply not true at all - its the opposite.