There's some moral wrong giving people exposure who are being obnoxious in order to get exposure.

Linking may not imply endorsement but their twitter account clearly shows they want the public hate as attention, so whether you want it or not, you're doing them a favour by naming them, even if to scold them.

This is akin to associating every mass killing with a terrorist organisation (whether accurate or not) and showing detailed videos of those killings when the entire point of a terrorist organisation is spreading terror.