I usually only ever thumbs up a deck is it has some very clever or amusing strategy that I have never seen before. Sadly, this means that >95% of decks do not warrant a thumbs up from me. I don't really care about hated cards like sosa or black hole. They are just cards. It is the unoriginality of the idea that makes me thumbs down.
For example, if a deck threw in SoSa randomly then that shows poor thought and I would thumbs down even though it beat me. However, one deck I saw had quantum tower as oracle card and instead of building a speedbow, the deck maker threw in one dragon of each element and the result was quite halarious. Sadly I beat that deck and was unable to thumbs it up.