The parent said "grew", but I think a closer reading of the article indicates a more robust idea that tboyd47 merely misrepresented. A better sentence is potent

The parent said "grew", but I think a closer reading of the article indicates a more robust idea that tboyd47 merely misrepresented. A better sentence is potentially: are able to profit to the tune of a 40% margin on advertising revenue With that, they're saying that they're only going to be able to profit this much in this current regulatory environment. If that goes away, so too does much of their margin, potentially all of it. That's a big blow no matter the size, though Facebook may weather it better than smaller competitors.