[SpikeDad]

It's created automatically (or manually) for any email prompt. It is automatically set for the domain so fill in provides the forward address automatically. You can turn this off and you can delete the forward address anytime you want.

What else would one need from a disposable email?

[mynameisvlad]

A disposable email in the form provided by this service, the emails essentially go into a black void. They don't go to your normal inbox like the ones provided by Apple do.

It's a subtle difference.