Originally Posted by secret agent:
“Sometimes she does make good observations but whenever she has a strong dislike for a candidate it seems to turn into a grudge, with constant snide remarks.....remember her hatred for Alex and Susan Ma from Series 7.”
She criticised Susan heavily in one episode, which some people here felt was unfair (I thought it was valid criticism), but that didn't translate into series long hatred. As she isn't called upon to say much there really isn't scope for "constant snide remarks". That it might turn into a grudge can really only be a suspicion, there's no evidence for it. If she says negative things about a candidate more than once, that might be a grudge, but it might be that she genuinely saw negative things going on.
She and Nick see the candidates in action close up for days on end (it's continuous, task after task, not weekly). It's not surprising that they will form negative opinions about some of them. The candidates themselves do too.