I've never seen a poster here on GN respond to an abused EAC in that way.
What's wrong with saying to an EAC who hasn't spoken of abuse at the hands of their parent(s) "In the nicest possible way, do you think that maybe what you said/did was a bit harsh and maybe that could be something you could look into"?
For goodness sake, EP's get that all the time and often not as sympathetically expressed. We get the old 'no smoke without fire'; AC never estrange decent, kind and loving parents, an AC would never be manipulated by their abusive coercive partner to estrange their parents, and this is one of the most outrageous things I have ever seen addressed to an EP. That an AC who establishes an adult relationship with an adult abuser, must have learned to accept abuse as normal in their childhood.
There are 100's of threads currently running on GN and anyone can say about any of them that they are made to feel they should go away if they don't tow the line.
"Follow the rules, call us perfect, innocent and blameless, or go away". I hope that wasn't specifically aimed at EP's Starblaze because let me tell you something, in case you haven't realised it despite all the old threads you've been reading.
EAC don't have the monopoly on pain, EP's and EGP's hurt too.