Listen it's simple /a/ and it applies to every anime ever made ever. I've said it before, some of you were just too busy trolling/ being trolled to notice. The 1st season is always the best, why? Not because of nostalgia, but because they TRY with the first one, they try REALLY, really hard! Because they want fans, they want a steady cash flow so they put alot of effort into impressing us...then afterwards it's a stream of shit, because they know that they've got a bunch of idiots who probably won't let go.
Nostalgia doesn't exist, it's hope, hope that the next season they're making will be as good as the 1st one, and so we watch each and every painful episode in hopes that one of them will be done right, we support the franchise by buying their merchandise so they won't run out of money before that next WIN series we know they have locked up somewhere and you know what?
JUST AS PLANNED.
tl;dr - Keep watching.