Why use different accounts? I notice OP has only been active for 50 days, so I assume they have either read for many years but not signed up until then or they

Why use different accounts? I notice OP has only been active for 50 days, so I assume they have either read for many years but not signed up until then or they use multiple accounts. Why? I understand there a non-nefarious reasons for this, but just curious behind the reasoning.