"I'm no fan of law breakers, and especially those who is looking from a quick buck from elderly residents of my neighborhood," writes Agent Akit regarding these pieces of paper taped over curb addresses in the Outer Richmond. Why is it a problem, you ask? Akit explains:

Here's the problem. It's a violation of the law to hire someone or do it yourself, and could be considered graffiti, for the exception of the SFMTA who is the only authority allowed to paint curbs (public property). The city only sanctions the SFMTA to paint curbs for parking purposes, and for residential areas, it's normally the red curbs which costs a couple hundred, and gives the city authority to ticket anyone parking too close to one's driveway.

[...]

For this particular curb scam, they call themselves "Community Services" and I found through a search online that they've been doing this before as noted on this flier (click here). The one found on that link is exactly similar, but the one found on my block now has a sobbing story, by providing "self-employment for students and artists throughout the city.

He goes on to recommend that, if you come across an illegal curb address paint scammer," tell them no and do not give any money to them, and call SFPD at: 415-553-0123 to give a full description of the suspect."