It’s one question what you ‘feel’. It’s a completely different question how native speakers use the language. We have tried to explain to you that using ‘kindly’ instead of ‘please’ is outdated and sounds archaic. Why are you bringing it up again?
Your opinion. But not the norm of you have a British background.
It turns out we have had the same conversation quite a while ago:
Thanks for your question. Had doubts are this words synonyms or not
My two cents: I would agree to not use them together, but I use both fairly often. As an attorney (in the US), in a cover letter I may write something like, “Enclosed please find…” and then later may say, “Kindly sign and return…” so the use of one versus the other could simply be to avoid repetition. But not to put too fine a point on it, I will say that “Kindly” seems to make more sense with an imperative: “Kindly close the door” versus “Close the door.” sounds softer. And i would not likely use kindly as much in spoken speech - and when I do, it’s usually, “Thank you kindly.”