There's actually code that throttles the level of nesting comments to prevent a IRC like flamewar or even just vacuous comments that have not been well thought

There's actually code that throttles the level of nesting comments to prevent a IRC like flamewar or even just vacuous comments that have not been well thought out; the deeper the nesting, the longer you have to wait until you are allowed to comment on that post. Edit: your way works too if you want to short circuit that delay.