Comment by maleldil

CS conference papers often have page limits (e.g. ACL ARR is 8 pages double-column), so most paper main bodies are exactly that, as it's seen as sloppy if you don't use the full count. I've had someone point out that it's best to use the entire page 8 without leaving any gaps.

There are also appendices, which reviewers aren't required to read. If there's something relevant that doesn't fit in the main body and you don't put it in the appendix, reviewers will point it out and ask for it, and it will influence their grades.

In the end, publishing papers these days is about convincing reviewers rather than actually writing a good paper. And you usually have reviewers asking for all sorts of things.