You're new here, aren't you..?
...
No, seriously... This 'Challenge' has been running, every month, for many years now, and is far from being a joke. We do, however, have a certain complicity between some long-standing (and long-suffering...) members who regularly participate. I would heartily recommend that you have a go yourself, and shortly you'll be just as we are, ribbed, subject to banter, leg firmly pulled and have your efforts warmly welcomed and appreciated. It's all good fun; jump right in, the water's lovely.
(No, no bagpipes. Seriously. No bagpipes. OK..? None. Nada. Zero. OK..? ...)