Or, to put it another way, being awarded a badge is not an action.
On a user's profile page, the Activity tab shows a user's activity, with subsections to show their Answers, Questions, and so on. One of these subsections is entitled 'All actions' and shows something like this:
The problem, as I see it, is that badge-awards - which are actions performed by the system, not by the user - easily swamp actual active actions for anyone who doesn't use actively act on a site very much.
In particular, if trying to find out when a well-established user stopped actively participating in a site, this section is basically useless, as the first
n pages of 'All Actions' | 'All' will be entirely filled with badge awards.
Feature Request: add a filter somewhere in this area, perhaps here:
to allow Badge Awards to be excluded from the list of displayed actions.