Meh.
Some people's pet hate is a striker who doesn't score (Hustini & Co. on Amauri). For some people it is a midfielder who can't pass (You on Sissoko).
For me, it is defenders who don't have a brain.
The guy literally has no idea about when he should make a tackle and when he needs to just stand up and hold his position.
If he was doing these things as a 19/20 year old, I would view it differently, but I see no sign of him learning from mistakes.