Interestingly, I found absolutely no evidence that any of the blocked users ever initiated any contact with either the @SFCityAttorney or the @dennisherrera Twitter accounts. We should all ask ourselves why these individuals are blocked to begin with. We should question the process they should go through to get unblocked. Unfortunately, there is no standard process for blocking people who Tweet posts of scrutiny or criticism toward a public official or agency, nor is there any standard practice they can initiate to regain their "unblocked" status.
This is not how democracy is supposed to work. Tweets posted to "public" accounts of public officials must remain open to the public.