Because ive been coding on the internet since 80s when it was aol and BBSes, and steemit.com which is NOT steem is nothing more than a neglected "reference prototype" that is not going to be around in its current form much longer, and because the metric is already making ridiculous results like everything of its kind ever tried, and thats called wisdom and experience. Its flawed, and irrelevant. People with REAL influence dont give a shit about scores, and its a way to pander to the unwashed mashes with pipe dreams. Apply some reason and logic and look at its already dismally stupid results as well as those of every metric like it ever before, and you'll figure it out pretty quickly. No one in the echelons here takes it seriously at all.
And yes, none of the sites use it anyway. It moves voting rings to follow rings, continues circle jerks, buying rep is already done, and Ive already seen reference to coming ua bid bots. Nice way to keep uninfluential people dreaming and spending. 

useless, stupid, made up "metric" in practice, like rep and clout and "authority" scores like these always are.

No the trending page doesnt bother me, because I know what paid promotion is. The home shopping network and tv commercials dont bother me either.