I mean, 2ch's software is kind of shit. Remember when it was about to go down in the early 2000s until the UNIX board optimized it a bit?

Yes. If you simply delete the post, it affects the message count and the >>reply system. Consider a reply that says >>3,6-8,11. When 7 is deleted, manually updating that >>reply string to >>3,6-7,10 is just a lot of work.

>>2-4
Obviously, you have never programmed a textboard before.

>>5
Kareha is public domain software. Why don't you program a report system if you're so clever? It shouldn't be that hard; client-side JS or no.

>>6
I wrote a textboard script last year, actually. I don't know why you assumed I have never programmed one before.

>>8
Yes, I didn't say it was a masterpiece. I'm only insulted that you assumed I had no experience or understanding of textboard software.