It's not about winning mate. I resent the inference, it's offensive.
As you could see from my post, I was already losing interest before the we started to win. It was the fact something I'd hoped for all my life happened that kept me excited. The fact was, soon after that, as the AFL started changing rules to try undermine us, it became a bit of "oh yeah, that's right. These guys suck at running a competition. I remember where I was now." Shiney new things distracted me from the malaise.
I used to sponsor players in the Wallet and early Dimma eras. and contribute - for me - a significant amount of cash in donations to the club through their fundraising channels. I now have a 3 game membership, and have done ever since 2015.
What I didn't like before we won Premierships, was how the AFL kept manipulating outcomes to try get GCS to win. The way the Demons were having the league intervene, helping them get coaches and administrators in to fix the club. At the same time, we'd struggle for much the same reason as the Dees, and Carlton (mismanagement) but there wasn't a hell of a lot of help coming out way. The reason why 2017 is such a triumph, is that we managed to pull something together in spite of what the AFL were doing.
The Brandon Ellis compensation, the stand rule, the arbitrary rules on the run (Geelong trading away a bunch of first round picks, then having a "reinterpretation" of the rule so they could bring back G Ablett Jr), the list could go on and on. The AFL have tried to limit our success, and they certainly didn't give us as much support as other clubs got to get out of the hole. We made our success, we tried to keep it going. They've done all the could to end it, and at the same time, made the game ugly to watch.
I think I've said a very long time ago, the AFL is a contrived competition, run by a bunch of "old boys" who bury anything negative about them, have too much virtue signalling, I still haven't bought the book discussing the shady nature of the AFL by M Warner, mainly because it would probably make me angrier than I am today. Nothing that is happening today is addressing any of the concerns either.