Ranking and filtering procedures have too clear and strong a societal level impact to remain opaque mechanisms to the people, in particular when they are controlled by parties working for profit (such as corporations).
Working on things that are not interesting to me -- although I should acknowledge that the definitions of 'work' and 'interesting' are not independent.
Closed source ranking and filtering algorithms.
Ranking and filtering procedures have too clear and strong a societal level impact to remain opaque mechanisms to the people, in particular when they are controlled by parties working for profit (such as corporations).