Why do people follow a streamer and leave immediately?

So I've done the follow and dash to a handful of small streamers recently. I'm about to start a new game and work with a larger streamer and his community that is also about to start the game. When he logs off he is going to need people to raid/host, and the people that I've followed seem chill, watchable, and aren't going to be shouting profanities and dropping f bombs if he hosts.

Some of the followed are backups that will never get a host - a member of the community that we already know will be on, the time frame won't work, they will have switched games etc. I have people followed from games we aren't playing now, but might in the future.

If I did it to you, you probably aren't exactly my cup of tea, but I think others might like you, so when a streamer I work for is going to toss a host I can throw you name up there as a recommendation.

/r/Twitch Thread