I have been trying to find the origin of the publishing edits it, but because the result is too much and has evolved into a hard for finding a Publisher first.
and in my opinion, the reason they changed the picture maybe to make funny, and because it happens to be steemit are booming so the logo steemit,
for the current position of social media dominated by facebook then they made a rival with fb,
According to they the steemit will beat fb.
Thanks @surfyogi for interest topic