You're right, but you are wasting your time. Your post should never have been downvoted, but you will bang your head trying to get the kneejerks that did it, to explain their reasoning.
And you'll notice that all the posts subsequent to your mentioning XP are anonymous. Because, whilst they'll all say that "XP is unimportant", which you know and obviously do not care about as you have continued to argue your valid, intellectual point knowing full well that it is likely do garner more downvotes--it's called a principle--'they' all post anonymously because they are scared that they might loose some of that XP that they claim so vermently doesn't matter.
There are a lot of them (kneejerks) around here, without the logic to justify their opinions, or the balls to try.