“The comment is general”
It was a general comment made in a specific context. It clearly implies that there was irresponsibility in this case – otherwise, why is it suddenly being mentioned here?
Think about it this way – if chas v’shalom, you left your child in the car, and there was c”v, lo aleinu, a tragedy, and someone started a thread about it, and then someone wrote a post about how people should be careful not to leave kids in cars, how would you feel? Would you think, “that comment was a general comment that had nothing to do with me, and just happened to be mentioned in the middle of a conversation about me?”
I don’t think “clearly” applies
btw, according to halacha, if you don’t mention someone’s name, but it is clear who you are referring to, it is still L”H.