I would say you are being unnecessarily pedantic: the GP said "anything wrong", and the original comment obviously believes that there is "something wrong" which makes the choice not "sufficiently tasteful/professional/anodyne" (/me looking up "anodyne").
The obvious positive reading of the GP comment is that they disagree anime characters make it not "sufficiently tasteful/professional/anodyne".
I am replying to the "parent" comment which replies to the "grandparent" comment on the "original comment".
You seem to be unnecessarily pedantic too, while being wrong at the same time (I would get those relationships wrong sometimes if I thought it was clear enough).
