Wait, Twitter are paying $200m on employees, bringing in $2.5bn and spending $3bn (draining half a billion)? I assumed their biggest expense would be employees,

Wait, Twitter are paying $200m on employees, bringing in $2.5bn and spending $3bn (draining half a billion)? I assumed their biggest expense would be employees, what are they spending $2.8bn/year on? At that scale spending 4x what Facebook spent on employees at the same level (assuming 2x as many with 2x salary inflation) barely registers.