I've not read the link, but never try to understand other people - you never will. One of my neighbours again allowed her cat to have yet another litter of kittens. This time though, the poor mite only had two. One of them is obviously brain damaged. Probably from being undernourished during pregnancy... it has no sense of balance and is completely unable to stand
at all. As soon as it tries, it looks as if it's had a bottle of whiskey and falls with such a tumble it often ends paws up in the air! It doesn't even seem to be able to keep it's head upright in any way.

Poor bugger. It's seriously distressing to see it! Anyway my other neighbour kindly took it to the PDSA for her and it got some injections to see if it might help - she was supposed to take it back for the rest and she's just not bothered

Instead the wee thing is suffering and should be PTS - but she's doing nothing about it

Stupid moron that she is.