Alpha sheets can now be added to games via the edit option in the alpha sheet display. In addition, statblock embedding should also work for the [sb=show][/sb] tags. Any problems, please post in experimental features with links to the sheet and the game.
Edit: I have no idea who Gregor Mendeleev is, as the periodic-tables guy was Dmitri Mendeleev. The XKCD comic doesn't mention a first name though, so it still works. You may be confusing him with Gregor Mendel, often hailed as the founder of biology. They were both alive at roughly the same time.