Whether security camera observations can be flagged seems to me to be related to the question of whether a camera trap is an iNaturalist policy conforming observation. My own opinion has changed.
After long reflection I no longer hold this opinion in regards camera traps. I now read "An observation records an encounter with an individual organism at a particular time and location."¹ as “an encounter by an individual person with…” based on "Our primary goal in operating iNaturalist is to connect people to nature,…"². I now read that as a personal encounter with nature. I now do not consider an automatically triggered camera trap to be that personal encounter. Just my own shift in opinion. I realize that while others may concur that these are technically not one’s own personal observations they are still submittable. One’s opinion on camera traps bears on whether a user should be flagged for posting security camera based observations.