hammering down your idea, you welcome
Here ppl tell "encourage attack" ideas and think its best way to solve stagnant gyms problem.
You guys dont understand the problem?
If 99% of player base in your city is Instinct, there is no attackers!!!!!!!
This will only encourage multi account using and nothing else.
Cant encourage something that dont exist.
Answers
In my village 95% or more of the players are Mystic. I think most Instinct come from out of town so on occasion a few close-by gyms turn yellow. Even if the Instinct / Valor wanted to help they couldn't because they will soon run out of healing potions.
The bottom line is that rarely does a gym get attacked and people still feed pokemon berries, probably to get stardust.
I don't know how widespread the problem is, but I hope it gets solved.