I think a distinction might also need to be drawn across some other categories (in combination with the live+blitz vs correspondence distinction already drawn):
- Auto-match games (or should this be a preference option to select?).
- Site-wide and group ladders (if group ladders cannot be further configured).
- Site-wide automatic tournaments (if not a mix of both).
- Custom open/direct challenge matches (although a play can override the default, should they be able to for ranked games?)
In all, there are a lot of combinations to consider. For some of these categories, this decision could not be overridden. For simplicity and consistency, I prefer disabling analysis by default across the board.
Another benefit (in my opinion) of disabling analysis is that the score estimator is disabled as well. I’ve previously argued for disabling the score estimator (especially if it were to be improved with strong AI engines) in other threads: December AI Updates and Help understanding the computer analysis output