Twitch followers away what to do?

I've been active on Twitch for several months and got 261 followers, but when I looked this morning there were only 206 and that night would never unfollow so many people because I know my community… They wouldn't do that.

Apparently yes. They don't go away on their own.

First of all, just because you have the feeling that you know your community doesn't have to mean anything. In addition, Twitch repeatedly deletes inactive accounts, for example to make the names of the accounts accessible to others.

Maybe also fake accounts that have been banned.

Maybe some have been banned or there's a bug ask the support. And people leaving happens again and again.