Yes I did, but I don't feel you quite grasp what was said.
So what you're not getting, is that it is not about "exploits," that sounds bad and negative, something you are not really supposed to do. But I fully agree with
@Lanefan that if the players are given a tool, then using that tool becomes a legit gameplay strategy. And that is not a bad thing, but if you don't want the sort of game where that strategy is used, then don't give the players the tool!
And there absolutely are games where extensive player setting control is expected, and its use is a valid strategy. But those games usually have mechanics built to support that, and D&D really doesn't. So I don't think it is a particularly good fit for this game.