Because you are being so open about it why do you feel you need to use a nick in real-life? A lot conversations for this story seem to have focused on the conc

Because you are being so open about it why do you feel you need to use a nick in real-life? A lot conversations for this story seem to have focused on the concept of permanence with a nickname. If you use the same nickname across a multitude of services then you've created a "real" identity. I'm trying to understand peoples reasoning for this. To me there seems to be two prevalent reasons: 1) You want your single identity to be under a name you choose, not have it be forced upon you like you real name was. 2) You want to maintain a multitude of identities each with a specific purpose.