Looking around at most of the stack exchange sites, it looks like ServerFault has the least humorous examples. Superuser has a toaster question (clearly upvoted for comedic value), stats has a comic page, stackoverflow has a joke pagestackoverflow has a joke page.
And these are just the ones I already knew about, I'm sure there are plenty out there.
But I couldn't really find much on ServerFault (nor have I come across any despite being pretty much solely active on ServerFault).
I'd prefer locking it, and creating a disclaimer at the top that it was in fact an April fools joke. (to prevent confusion)
Personally I don't think rep is that important to delete one of the few humorous questions on our otherwise somewhat over serious site.
However, if this would end up the main reasoning for closing it, perhaps the question could find a home on Meta?