“Child eating” is not a compound modifier, that’s what the hyphen does. Without a hyphen, the modifiers “child” and “eating” both independently describe “pedophiles”, the hyphen makes “child-eating” into the compound adjective the author was obviously intending to convey. Wikipedia uses the example “heavy-metal detector”. Without the hyphen, you have a metal detector that’s heavy. If you need a device to detect heavy-metals, your SOL.

Absolutely no clue what “gamer and yeah” means 🤷‍♂️