He's not anywhere near defending grooming or pedophilia.
But by all means, continue fighting tooth and nail for a cause that no one in this thread is preventing you or anyone else from championing. If you want to defend the children and spend your days worrying about them, stalking everyone until you can determine their A/S/L to make sure they're not too young and further determine, with your likely limited expertise, whether or not they're being groomed and/or gaslit, then feel free.
But not everyone is going to take up the mantle, and not everyone's going to appreciate that style of policing.
Bottom line: if you feel like someone is doing something that they shouldn't be doing, report it. If the GMs determine that they are, in fact, doing it, and that it is something that they shouldn't be doing, then they'll take necessary steps to take care of the situation. Most likely, however, if you can't prove someone's doing something, or if what you think they're doing is not actually being done, or if they determine that what they are doing is, in fact, not against the rules, then likely nothing will happen to them.
If you take matters "into your own hands," however, then don't be surprised if you're met with resistance, and don't be surprised if nothing meaningful actually happens. Even moreso if you're not actually going to do it yourself and are waiting for everyone else to do it for you.
Until and unless you can actually prove someone is doing the thing you're saying is happening, and especially until someone does something that specifically aims to maliciously harm the game and/or it's players, there's no cause to do something specifically about the issue that isn't already being done by a majority of players, both in and out of the community you're trying to generally accuse.