every machine has an ethos. the idea behind aspects is when you decide to start sharing your stream with someone, you don't have to share the entirety of yourself. there's never an all or nothing. so, from a single account you might want to share some things with certain groups of people but not other things. making a new aspect doesn't require that you have a new account to share out and do the same old work of getting everyone you'd like to see it to follow your alt again – you can just make the aspect and publish to it.