Yes, it could be either nominations or edits. As far as edits, we recently were given some additional info about spam edits, which may or not apply to your friend:
Also, the Rejection Criteria section may provide some more info about what may be the issue at hand, as it lists examples of what can be considered low quality, like using 3rd party photos or copying and pasting descriptions from another source. Even submitting a title/description edit that only adds 1 character, like a period, may be seen as low quality.