The city does go after the people illegally tagging properties: https://sfstandard.com/2024/10/17/san-francisco-prolific-graffiti-suspects-arrested/ https://sfs

The city does go after the people illegally tagging properties: https://sfstandard.com/2024/10/17/san-francisco-prolific-graffiti-suspects-arrested/ https://sfstandard.com/2024/10/17/san-francisco-prolific-gra... https://sfdistrictattorney.org/prolific-tagger-charged-with-felony-vandalism/ https://sfdistrictattorney.org/prolific-tagger-charged-with-... https://sfist.com/2016/01/25/prolific_tagger_fined_over_200k_by/ https://sfist.com/2016/01/25/prolific_tagger_fined_over_200k... Many more results if you search for “prolific tagger San Francisco”.