Your disdain for this game and its creator is understandable and expected. But to make a bigger deal out of the bad bits than the rare good bits is definitely glass half empty.
If the good bits are "rare," but apparently the bad bits aren't, then it's not pessimistic to notice that. Optimism is hopeful, not blind.
Btw, that you stuck with a game you knew won't get good any time soon for a year doesn't make you an optimist.
Actually, I think sticking with the game in the belief that it will get better definitely
makes the people here optimists. People who could see only the bad left a long time ago. It's the good parts that give the people here faith that the game will improve. I don't see how looking ahead with the expectation of positive improvement can be called anything but optimism.
However, being optimistic doesn't make you ignore the problems that are here today. You can't believe that things will get better without acknowledging that things could be better. Optimists are allowed to be frustrated or disappointed, too.
Unless you think the people who are still playing are doing it from a pessimistic certainty that the game won't improve? That seems unlikely to me.