How do you un-follow someone?

I'm also greatly annoyed because I can't email you because your "mailbox is not monitored and
I will not receive a response." What is this all about? You need to have a way to ask for help of report a bug without having to choose one from hundreds. I'm a busy man, and I don't want to have to open up Musescore and click on "Help", and then "Report a bug" or "Ask for Help" to do this. And not speaking of which, have you seen Stephen Colbert at the Republican Convention? You need to watch it.