Profile Fields

[MajorKokosnuss]

Hello there could someone make me a little guide on how to add custom user profile fields to the left side of every post ? i saw the tutorial from lynne but it is only for the user information if someone went on thier profile :c

I mean this thing, wich shows the reputation, post counts and joindate.

i whould like to add a custom profile field to it

Thanks for every help!