This may be users who never picked up the change Martin made to apport to not report crashes when the running binary does not match the installed binary (upgraded underneath), or it's possible that change is preventing crashes from going to Launchpad but not whoopsie.
This may be users who never picked up the change Martin made to apport to not report crashes when the running binary does not match the installed binary (upgraded underneath), or it's possible that change is preventing crashes from going to Launchpad but not whoopsie.