N O
Firstly, she's too much of a big artist to be judging on a talent show like X-Factor not to mention it would hurt her image rather than help it like some stans believe. If she isn't open and remains robotic like in her interviews then she won't be a good judge and the public won't see her for who she really is, which we rarely see nowadays. She's too humble and nice to be a judge to give constructive criticism. Not to mention the media + public backlash to her judging others on their singing when she mimes herself.