What was your fox's name?? That is such a cute pet, I don't think they had that one when I was playing.
The Signature ones were SO fancy.
Aaaaand, yep they did delete all accounts, used to they would delete your account if you didn't add a new Webkinz once a year. I didn't have enough money to add one to both of my accounts one year, and poof- it honestly messed me up for so long- what a fucked up business practice.
They did do a thing several years ago that if you emailed them your old username they would reinstate your account (so I guess they weren't really deleted) but I didn't hear about it until way later.