You are wrong. There are still many people discussing the possibility of $100k. People discuss not only in this forum, but they can also discuss it anywhere, especially on social media. If you don't see any new threads about $100k BTC, it is because we already have many of them.
It's still a long time for Bitcoin to be at $100K because that's a huge value for Bitcoin even though everyone no longer doubts the potential that Bitcoin has so wants to have a discussion about it anywhere, and I think that's a very reasonable thing also to be discussed although it still takes a long time.