Yes, quite true. But they usually keep it to themselves. Dumb actor has to air his dirty laundry for attention.
I think it’s good for famous people to talk about it. If you read up on this kind of stuff you’ll find parents that haven’t bonded with their kids tend to feel a lot of guilt. Which probably doesn’t help the bonding process. If it helps one person say “oh, I’m not the only one” then it’s a good thing.