>>1014392
I already solved this problem like 5 years ago. It should be a DAG and comments are sorted vertically by post date (older posts are higher than newer posts). It can't be implemented in the web because the moment you turn on JS, any modern browser will freeze and the code will become 10x more vendor/version dependent. Alternatives using CSS are just as retarded. It needs zooming to work good, which is even more impossible to implement with webshit, as you need to update the framebuffer within a hard limit of 16.66ms.