@ZS I use my alts mostly to be in multiple clans at once. Most of them are used a few minutes a week for the occasional chatting in clan chat, but that's about it. Bob is the only alt I have that can be considered active.
Or sometimes I'll make an alt just for testing something specific that requires a new account to work such as:
WZI testing alt
https://www.warzone.com/Profile?p=501294010675000% boot rate
https://www.warzone.com/Profile?p=27129257822