Let's call it what it is.
First there was MySpace, then there was Facebook, and then ... there was MySpaceX - or wouldn't it be nice if we just called it what it was? Now you can, and for so much less money than Elon paid for the contraption - forever free.
This simply replaces "Twitter" with "MySpaceX" on any webpage it appears. It only updates text nodes, so it won't break urls with the string "twitter" in it.