Everything would have been extremely useful years before it was developed or created. Unless it was a threaded lid for threaded glass jars. That would be silly.
I could write dozens of articles in a day, but I'm completely at odds with the editing tools of Wikia (not that I am a Wikipedia master), and my writing style is schizophrenic at best. Not good for a read, and hard to follow. Also, this, being an encyclopedia, is not suited for a lot of meandering nonsense. My collection and experience only touches the fringes of the obscure, so I can't write valuable stuff like "How I met the head programmer of Polybius at a bar", but more along the lines of "My friend once had his artwork published in the letters section of EGM". I have a working 3DO. Wow.
But hey, anything and everything is welcome. Even stuff tangentially related to classic gaming, like the pyramid scheme contests in game magazines.