What do you think of this research on shiny encounter rates in friend safari?

I figure it's inflated due to people who don't find one not really contributing.

I'm at 331 dedennes (over 400 total encounters) in a fairy friend safari trying for a shiny.

reddit com/r/pokemon/comments/1ol2tw/research_increased_shiny_chance_in_friend_safari/

Excuse the leddit.