anecdotalist

Someone who gathers or tells anecdotes

Garzo was a good anecdotalist, he could retell many an entertaining anecdote to lasto down the boozer

anecdotalist by Fray-Z December 17, 2009

Anecdotalytically 

The early observational, situational, and circumstantial analysis of various “tipping points.” Identifying trends in goods, services, styles, and behaviors prior to notable increases or decreases in usage; simply through observing them with your own eyes and/or anecdotal evidence shared by other people who are not associated with media or other analytical professionals.

I knew anecdotalytically that the price of those Jordans were gonna blow up, I saw 16 people wearing them on Melrose last week.

Anecdotalytically by Loose Mortar May 13, 2022