not sure why it has been removed. the ability to push people off protected zones etc when they go afk carelessly in the open has been removed does anyone know where can I find a plugin that will bring this back?, also if you know of something that makes the netherwarts be like before too (only grow in the nether) please help !! idk why mojang is making the game so easy.
The nether wart idea would probably be pretty straight-forward. IDK about how to make the pushing idea.
Im not sure how workable the pushing idea is, it would require modding how entities interact, but I am unsure how or if this is even possible.