I happen to have read the article in question and it's nonsense - she took so much time to find all of those "inappropriate posts" (which weren't inappropriate...) and yet didn't take the time to get her facts right. Before making claims like that, she should actually learn about this place. Instead of googling slang and assuming the worst definition possible is the one we're using, she should have come on here and asked. As far as places on the internet go, this is pretty darn kid-friendly.
I do understand where she's coming from, though - parents just want what's best for their children. They want to keep them safe. Still, that isn't an excuse for that woman to make that stuff up.