I, and those guildmates of mine who quit, were logging in every day. We logged in struggling to decide what to do -- not because there wasn't anything we wanted to do, but because we had so much we DID want to do. Map completions? A dungeon? More WvW (this usually won out)? Maybe play on an alt for a change? We were having a blast.
If you really can't understand why somebody bought a game promising horizontal progression, then decides to bail when vertical progression is added less than three months in, I really don't know what to say. Age of Conan started out with gear mattering very little, too; and they went back on that, and stat gaps got more and more ridiculous and I had less and less fun. I've seen this scenario play out once. This ain't my first rodeo.
As to your, "You should have been playing LoL" comments -- Why? Why should I be playing a different game, when I was having an absolute blast in the game I was already playing? "Well if you were having such a good time in GW2, you should have been playing some other game." LOL what? Congratulations on generating the most ignorant argument I've seen yet on the topic.
That little "That's just my opinion" tagline doesn't mean you aren't being condescending as hell while trying to marginalize other people's objections to the game. You don't mind a new tier of gear? Bully for you. But stop trying to pretend people are upset for reasons they aren't. I don't speak for you; stop trying to speak for me and others.