Unlimited nametag feature hides original nametags and display armor stands instead. It was created back in MC 1.12, where we were actively suffering from 16 character limit in prefix and suffix. The very next version mojang removed the limit. Had they done it 1 version sooner, this feature may have never existed. It has unlocked a lot more than just that, and has become quite popular (about 20% of servers using TAB have it enabled). However, as time goes by, this feature is becoming more and more complicated to maintain, which made me decide to completely remove it. It was a good run, but I don't want to keep going.
Main reasons for removing this feature include:
- Code is becoming more and more complicated, especially to support all MC versions.