Hello,
First of all I don’t really get the actual meaning of “please”. I understand it as it used to make a polite request. However I have rarely seen any westerner saying “please” on either Lemmy, Mastodon or IRC. where I live using “please” (मेहरबानी) is used often.
Maybe in some cases, but in this case the use of “need” is insincere in the first place. A please at the end softens and adds a little bit of humility to what was originally a somewhat hostile response.