I give up. Between deleted threads, deleted comments, deleted content from social media links that have been posted and the amount of threads and posts there are on this board, I can't provide proof. I know it was on Mumsnet I came across the image I shared earlier on Reddit as this is the only place I discuss this stuff. I wouldn't dare to anywhere where my real name would be known as I don't particularly enjoy death threats and harassment, so I exclusively stick to this anonymous forum.
You know it's not entirely reasonable to expect me to be able to prove something that was posted probably 5-7 months ago. You know I can't do a search for links or images. Key words don't work as every single thread is about exactly the same thing. But the comments were made. I know a lot of them were deleted, as you'd expect as they were vile, but I'm sure some still stand. They could be in any of the hundreds of threads though.
Hopefully someone else will see this and remember what I'm talking about and confirm I'm not going crazy. But also, you guys not remembering these posts doesn't mean much as it wouldn't be memorable to you. Why would you remember something that doesn't mean anything to you? It's obviously going to be more memorable to those who are appalled by it.
So well done, you win. I currently can't prove it so we can all keep pretending it didn't happen as obviously posters on this board would never sink so low.