As a mere man, without any of the experiences commented on already, I'd have said to Katey that unless the shopping centre (which, by the way?) has indicated something in writing then there's really nothing you can do.
If there was something in writing, then the local newspaper might cover this as a story, but only if there was a charitable agenda, without the controversial aspects that an organisation might drum up because of an anti-abortion agenda (where the newspaper would shy away from it, and very carefully consider any future advertising related to the shopping centre!)
As for anonymity, the "why" is surely obvious though clearly not to you.
Without encouraging random obscenities or back-stabbing, trolling, stalking or libellous comments about other MN users, the anonymous angle means that if someone wants to ask for advice / support or can offer it, their identity in respect of unfortunate incidents is not there on a platter for any gossips where they live, or to be used against them by relatives or (so-called) "friends".
Whether there have been health, behaviour, financial, alcohol/drug issues, sexual abuse, or whatever, that minimal anonymity may make the difference between posting and not. Sorry you need it spelled out but clearly you've not seen some of the other sections and put yourself in the shoes of others who have things in their past they may prefer not to have happened.