If you are 100% SURE that they could see your profile picture and the "gamer mom" id, call sony's customer support and file a complaint
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I submitted the grief report. I am 100% sure because they referenced it and my child.
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Then you did the right thing. Just forget them and keep on playing. There are many good gamers out there too. Hope this never happens to you again. Good luck and Godspeed guardian!