There is a recent trend in our organization where each Program manager has created a whats app group by adding all the team mates who report to him. This is now being used to send quick updates/reminders like completing time-sheets or asking quick question likes 'Is someone on leave?', 'Is printer not working?' etc. but the group has been getting overused now with silly jokes/comments, everyone greeting 'Happy birthday' and what not. Some juniors are over-commenting on almost any topic!
I don't like to use whatsapp and although it has mute option but then I keep missing some important updates as somehow our manager has started to put more updates on the group.
So my question, Is it right practice to expect employees to read whats app group message and respond? How do I politely refuse to get in to this group as I don't use whatsapp + I am bit annoyed to get so many irrelevant messages in that group.