My name is David de Kloet (and my middle name is Sebastiaan).
In most places where I register I register as dskloet and I expect all instances of dskloet to refer to me. Places where I have identities:
MSN - as davidmsn at tiscali.nl
- as dskloet1
- as Vello
- as David
... and more places I'm forgetting now.