Erasure

$erasure = $journal->erase(ResourceReference::of('member', '44'));
$erasure->deleted;   // entries of the member's own gestures, recorded or cancelled
$erasure->detached;  // entries of other members' gestures whose object was this member

Erasing a member deletes every entry of their gestures, and forgets them as the object of other members' gestures — a thank-you given to them, a duel fought against them —: those entries stay, with no object, since they are the other members' activity and their rewards come from it.

What a package derived from the member's activity — points, badges, progress — is erased by that package; the journal only answers for itself. Positions are never given again after an erasure, so a projection's checkpoint stays valid.

tilttek/activity-bundle answers the export and erasure requests of phil/privacy-bundle with this method.