I don't entirely agree with this. There is a balance needed.

Just because you have fixed a bug does not mean you should push out an update.

Just because you have fixed a bug within a day of a previous release also does NOT mean you should NOT push out an update.

It really depends on the kind of bug that been fixed or the improvement that has been made. If it's a crucial fix, please, please, please push it immediately. If user's are annoyed by too many updates, let them be. It's better to make crucial fixes asap than to try to not avoid users by pushing too many updates.