And people complained about me for posting 16 posts in one day (which is humanly achievable). 247 posts, only possible if there is either a team of humans, or if a human saved their posts in doc files to post on Steemit, but even then you would notice the frequency will taper off after a few days.
If it is a sustained frequency of hundreds of posts per day without any rest periods then you have to suspect a bot. That said it is $20 a day? It's not like he is getting rich.
Yeah that has to be scripted, i'd lose my mind very quickly if it was a manual task!
$15 isn't bad in some parts of the world.
I hear bandwidth could be the main issue - 4/5 images each post from what i see = 1000+ a day.