I still use the old spellings, even though I understand the logic of the changes, just because that's what I'm used to.I don't know... It's not like people around me often discuss it. For my part I still use spellings like "boîte" and "paraître", though I occasionally use the newer spellings when I feel lazy to add that accent.
The imperfect subjunctive certainly, but the present and past are in everyday use.I wouldn't dream of using the passé simple, with or without circumflexes, and try to avoid subjunctives of any sort in that language.
See, you can do it!Je ne doute pas qu'ils soient omniprésents.