>>418632350
That's because back then all that stuff was new.
It's been 5 years and we basically hit the limit of what you can do within the bounds of VRChat.
Gimmicks like those stopped being awesome party tricks, and are now just small tricks/props that people sometimes pull out during a conversation when they feel like it. Other things like local-only animations or triggers are so incredibly difficult and convoluted that only the most autistic of the bunch will bother exploring those.
The newest unexplored thing is OSC, and A LOT of people are doing interesting stuff with that.