A clever April Fool’s joke is always welcome, especially when it’s just plain funny, like an Onion article, where you first go “This can’t be real!” and then you realize it isn’t. If you can pull off that kind of joke, more power to you.
However, too many people simply post a lie and then after everyone believes you, you say “April Fools!” It doesn’t take skill or talent to say “Oh no, I broke my leg! Ha ha, April Fools.”
That’s not clever and distracts from people who really do have serious things happen to them tomorrow. Posting that you had something terrible happen to you may simply remind people who have had that terrible thing happen to them about it, and what’s the fun in that? You’ve just made people sad instead of entertaining them.
For instance: The same year my wife and I got married, we made invitations exactly like the ones we sent out for our wedding, except these invited everyone to come to our divorce, to be held at the Suffolk County Courthouse, on April 1. It went over well, because people first thought it was an official invitation to some special event, then they went “Whaaaaa?” then they laughed.
Anyway, please be clever if you’re posting an April Fool’s joke. Thanks.