"Why would I want to get paid to use social media?"
When the front page after signing up on Memo effectively says "You need money to make your first post!" It's not very welcoming. Even if you earn more than you spend.
I agree that's a hurdle, but the trick is getting people to jump it on their own. Worded correctly, that sentiment could engender exclusivity and quality: it's all in the marketing.
Enough people have heard the "If you're not paying, you're the product" line that some variation on that should hit home: ie, "Memo.cash - where you're not the product"
And enough people don't care if they are the product. They'd rather pay in tracking and advertising and surveillance than with a couple bucks. This is billions of people.
I think they *DO* care if they're the product; they just don't know any other way. This problem is not endemic to memo and will require an overall shift in the consumer zeitgeist.