In my name the first letter is P and the beaver is Biber - this is the difference which is funny :)
I know that most users don't upvote comments. I don't mind, but I try to give nearly every nice comment at least a small upvote - depending on the amount I have left for the day. And I also try to give every upvoter a vote back when I can - apart from bots of course ;)
... so please don't mind when I give you an upvote, and I don't mind when I don't get one back, and let's stay friends :)