GA Universal User ID

[jpetey75]

This would mean support for identify in GA Universal. We'd need a setting that defaults to false for letting people use identify with GA. We should probably also make sure people don't send emails to GA since that's against their terms of service.

Docs here: https://developers.google.com/analytics/devguides/collection/analyticsjs/user-id

[yields]

When a User-ID is available, it should be set after the tracker is created, but before any hits are sent

it might be better to do this without identify(), because of ^.
maybe check if analytics.user().id() and just pass it to ga() if it's set ?

@ianstormtaylor what do you think ?

[ianstormtaylor]

sounds good to me