I think the definition of CITO is pretty limited....I had offered up an CITO idea to help out a historical building where there is a cache, and we help mow the law and pick up trash that people have dumped on the property. I was told this was not a cito and it is only limited to parks, streets, trails, and pulling invasive species.
I did have a CITO published working with a community agency, but was told by the reviewer that these are no longer allowed in the future because as the reviewer said Groundspeak doesn't allow event that are preplanned for non cachers also. I think that is the one way to get the community to best support cachers is by working WITH the public and talking to them about caching, especially while helping....but who am I to say what is good PR.
Groundspeak seems limited in allowing anything other than those.