There's irony to be found here.
- [co-op] - 6 questions about cooperative multiplayer gameplay.
- [cooperative-mode] - 4 questions about cooperative multiplayer gameplay.
We also had a short-lived [coop-mode], but that was converted to the latter.
I can't find much reason to keep these tags, and any variants thereof, separate. They're always going to be equally applicable in referencing to the cooperative aspects of a game; whether the coop is present as a separate mode or is the default seems largely irrelevant, if not needlessly complex, as far as tagging is concerned.
Can we think of a good reason to have separate tags for now and in the future? If not, can we agree on a single tag to use?