Here a mockup how it could look like on nodebb.org forum:
who_can_see_this_01.png
List unfold:
who_can_see_this_02.png
Hi @greenmoon -- there is the explicit consent to send you emails specific to the forum itself (password reset emails, digests, etc.).
Each user can elect to turn the digest off at any time, but the consent to sent emails is still needed, unfortunately
Good stuff