Sort:  

In 99.9% of the cases I would agree with you. There is a remote possibility that for someone being consistently inconsistent works better. I've seen cases, but very very few.

Although, it might be the case that this consistent inconsistency is only displayed, but inside the person is very consistent about certain things. Hope it makes sense!

but inside the person is very consistent about certain things.

Principles, yep, it makes perfect sense to me. Story of my Life :))).

Very well pointed out! Yes, principles, life philosophy, probably much more important than the displayed or trackable consistency.