I’m having problems getting followers On Pinterest (no bots)

Hi guys, thx to this forum i learnt to grow all my social accounts but i have serious issues with Pinterest

What's an effective way to follow niche targeted people if 3/4 of profiles are fake?

Seriously, 10 follow backs on 1000 follows can't be good and i did this all manually, without bots, avoiding blank profiles etc..

Niche is nature photography

Thx to all