They didn't leave all of year 1 behind. There's a bunch of exotics (what that bungie post was referring to) that came up to year 2 & there's more on the way. & again etheric light & infusion fixed the problem that the bungie post was referring to. Also your gear is still relevant for the content that was available when you earned them. Wanting to use old gear for new end game content takes away the sense of progress. & just because destiny 2 will come out eventually doesn't mean we'll start from scratch. The titles mean nothing, as evidenced by ttk (which is basically a destiny sequel)