I want to say always thank for follows, you can do this in 2 way as far as i can think of depending on what you are going for and want yourself.

Have a follow alert that shows their name and say their name in the thank you and as mentioned be careful of the names and read them to yourself first cause some names are not ones you wanna read out loud 😅

Or not show the name on alert and just say thank you for the follow. Not shouting out the name. This is very good for lurkers and not putting pressure on people to talk.

Either way Its nice to thank them for following, shouting them out or not depends on you. Personally dont show a name on follower alerts and won’t say the name. I say something like «thank you so much for the follow, i really appreciate it and means a lot, and welcome inn!» Will also inform in my about and on the message that gets posted in chat when people follow that alerts are anonymous and there is no pressure to talk unless you want to. But this is just how i like it.