Some times ago, I had made #stesms then #stemms for short contents.
I realized that I shouldn't use a specific fantasy name when I want something to be commonly used. So I change the SteMMS tag to a more simple one, #minute.
Why minute?
Because I would like that you could read it under a minute. 111 words would be the max. It's just a number easy to remember, mark every short post with it. However, if it would be widely used (I'd like that), I wouldn't want to see tl;dr posts in this tag (which would abuse it directly).