There are lots of good businesses that operate on thin margins. They're good businesses, which is why you can divest them to investors who want to run a good business. What they're not are businesses that should trade at anything close to software revenue multiples.
No not really. Again, they lose billions right now because it costs a lot to build out new buildings. Then as a building matures they recoup these costs through the memberships. The more mature offices are profitable. It just isn’t necessarily tech/VC level profits.
A product with slim margins is one that you divest from so you can focus on the products with good margins.