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Well, that does come readily to mind..but it says in the article that the mother was surfing through Instagram and then came across her daughter's pic on a user claiming to be a bisexual cheerleader with 11 child porn sites hashtagged onto the post.. so that's how she discovered that her lil girl's pic was being used on a child porn site.

So, I wouldn't rule out exceptions.. :)

Good point, you are correct.