It's been mentioned many times on the Subsurface support mail list. Here is a link from October that includes Robert Helling (one of the more prolific contributors to Subsurface) asking to not use the abbreviation.
Rounding of figures
groups.google.com
And here is a more direct reference from Dirk Hohndel (the primary maintainer).
4.9.1 - "no new dives downloaded"
groups.google.com
It was not my intention to point fingers, but rather to let people know that there is a sensitivity there (with good reason.)
It's 2021.... I am 100% confident that not a single person on SB associates the abbreviation SS with the actual "SS" (I read disbanded in 1945?).
@dirkhh I don't believe has ever asked for any such thing here on SB, and I would hope that he would understand that not a soul on this board associates Subsurface with the Nazi Schutzstaffel. "SS" is used out of pure laziness because there's nothing easier to write.
SB
Gf's
SS
Coz
Bp/w
All these and more are abbreviations for lazy people (such as myself). That being said I 100% respect @dirkhh work, if you want to comment on what we call it (and knows full well that we mean zero disrespect with our current abbreviation), I'm all for whatever he wants.
I honestly love Subsurface.... but I hate typing.