The question I have is is it really the thread or is it the game?
Because for me it's definitely the game. I think I'm at the point where I just don't want to play anymore, but I'm so invested it's hard to leave. TM farming isn't exactly going too far out of my way, but some of these events are (raid and mog king was just horrible for me). I love doing the trials/difficult challenges, but I'm just burnt out on the grind now.
OT1 and OT2 were great because the game was still new and the excitement was real. Looking over OT3 there were a lot of off topic conversations (I'm guilty for a lot of those lol) because I think the real burn and disinterest was beginning for some people.
And now we have OT4. I was the 5th highest poster in OT3 and I'm currently 14th in OT4. It's just got to the point where I'm not interested in talking about new things in the game anymore, but that's on the game, not the thread. I don't joke when I say I check this daily for the people. Yeah we lost Chilly and Megan, but I still think we have a great community here, one that I don't think was built around just a few people. I've had many great off topic conversations with people like Muku and Hippo, and I've had some great theory crafting discussions with the likes of Zera and Pejo. There are lots of different regulars here who all bring something different. And as new users come and old users leave the thread is going to change. But I don't think that necessarily makes it worse than before, just different.
That's my two cents anyways.