Thought the friends list was listed by alphabet, but in my list MSCOZY shows up between the Ps and the Rs. 

It's sorted by first name, so if their first name does not show you will only see the member nickname but in the same order it would be alphabetically.

I'm thinking that MZCOZY is a 'nickname' and that her proper name comes between the P's and R's......(proper name being a first name - not last name)

I just added (yesterday) another PBS member to my 'Friend's' List and they only identify by their nickname.
Their nickname started with an "L" but hey showed up under another grouping way before the "L's" (shhh, not telling).

Ok, thanks....... thought during this long covid quarantine alphabetization had been re-ordered and I wasnt notified of the change!