This started as one of each.
But the latter half went away long ago.
Ever since it's been only the singular former.
And
cats never had anything to do with it either way !
Originally, back in '98, it was something else entirely.
But came a short hiatus, and that logon was misplaced.
Changing it now seems pointless.
And that's that.
ps: easy to tell it's the weekend on FR by the appearance of threads such as this :-)