I love this! I can't be fully transparent about my earnings because I have someone who screenshots all my Medium stuff and other written work for court. I'm not sure how easily they can find these comments, but they've found all my articles even though I blocked their account.
At one point, I was making $300 to $500 a day (from other sites, not Medium), and it was argued that this was my earnings potential. I make nothing near that now because I had to rebuild my career after a brain injury. I'm also a full-time student and have 3 kids.
With that being said, I'm not sure I'll even hit $100 this month at Medium. This is a really slow month for me, but if I remember correctly, August usually is. Because I have to be somewhat vague, I'll say my pre-bonus monthly income here has always been less than $500 per month but has been in the triple digits more than once.