RIP E. Gary Gygax.
I no longer play D&D, or particularly like class/level based systems, but D&D is one of the main reasons there even is a role-playing hobby, so indirectly, I have Mr. Gygax to thank for all the hours of fun I've gotten so far pretending to be an elf/embodiment of reality/vampire/whatever.
RPG.net has a black background today. They may have done it to reduce loading times and server errors, but I like to think it's a memorial.