It’s a bit. It’s quite popular to link an xkcd whenever it’s relevant, along with one of a few different catch phrases. “Mandatory” being one of those. For this phrase in particular, the joke is that there is usually an xkcd for most situations, and that it is our “duty” as nerds to link to the appropriate one. It’s an inside joke for nerds. I hope this explains the custom to you.
It’s a bit. It’s quite popular to link an xkcd whenever it’s relevant, along with one of a few different catch phrases. “Mandatory” being one of those. For this phrase in particular, the joke is that there is usually an xkcd for most situations, and that it is our “duty” as nerds to link to the appropriate one. It’s an inside joke for nerds. I hope this explains the custom to you.
> It’s an inside joke for nerds.
I love inside jokes. I hope to be a part of one someday.
Bobby tables has a gun on my back
> Who made the mandate?
I did