Algowhore

Contraction of the words 'algorithm' and 'whore'.

Also valid: algohoe

A person who uses one or more trending hashtags that are substantially unrelated to the actual content of post that is the case, all with the hope that by doing so their post will gain "exposure in the algorithm" or something of the sorts.

—But why you used all those stupid tags about Will Smith and Kanye in your post about your trap song release, Steve?
—Cause I want it to gain exposure in the algorithm, bro!
—By God, you're an acomplished algowhore, my friend.