Just that really, I am still in my old work colleagues group chat on whatsapp despite not working with them for over a year. I only speak to one of them as we were friends outside of work and I talk to her privately. I never contribute to the chat and to be honest, their constant moaning about working for a company I don't work for just annoys me. I have muted the group but it still shows up in my list of messages. Would it be weird if I just left the group without saying anything? Or would it be even more awkward to say bye everyone I'm leaving the group?!