spinson

Etymology
. Based on the idea that a person's opinion can be likened to the up or down spin of a quark. Coined by Piotr Nyczka and Katarzyna Sznajd-Weron in 2013.

Noun

 * 1)  An agent in an  representing a person who holds one of two opposite opinions on a topic (for example, "for" or "against").