Nitro Pin messages feature

so after having nitro, you should be able to pin 100 messages instead of only 50, the other person will still only be able to pin 50 in the same dm, but you can pin up to 100 messages (it only works if you yourself do it though) in any channel or dm, lets say i have my pinned messages filled with someone, and I get nitro, I can pin 50 messages more, making it 100, but the other person can't, it fills the dm or channel limit either way, its just that whoever has nitro can extend it by 50 pins