Not everything that Super Smash Facts tweets out is real, but that doesn't doesn't mean the Smash Bros. "factoids" account can't be funny.
In fact, sometimes the parody Twitter account manages to be more truthful than the actual descriptions you'll find in the Smash Bros. games. Most of the time, though, the Twitter account just likes to troll with its descriptions of Smash Bros. things.
Take a look:
I do gotta give the writing in Smash Bros. some credit, though, because even though they'd never write anything like Super Smash Facts!, they're clearly having some fun with descriptions anyway.