CTLAWYER,
“As I mentioned in a comment, I had never seen or heard the term SNAG until reading it in this thread. It is not a derogatory term uttered aloud in the OOT communities I’ve lived in.”
B”H. It does seem to be more prevalent in “online” spaces.
“In about 7 decades of life Misnagid has only been used as self description and see when reading Jewish history.”
I never heard or learned the term misnagid until I encountered Chabad. The terms I heard to describe Jews from my grandparents and frum relatives were Litvak, German (not Yekke), Chassidic, MO, etc.