At the height of the dotcom boom 1999 we established pirx.net. At that time BeOS was all the rage and we chose the same hosting company as famed BeGroovy.com used, Site5, and we never left.
Why? Well, already 20 years ago we became suspicious of the "free" in free e-mail and also we wanted to differentiate ourselves with our own domain, probably it was also vanity.
Any similarity to the name of a fictional character in the fantastic science fiction literature of the immortal Stanislav Lem is purely accidental.