Comment by fluoridation

Even if you had multiple operations teams, you could still get away with a fairly flat organizational structure. Not every organization needs to be a top-down hierarchy, and a flat organization makes sense if your funds come from donations and you don't want to pay for too many people who won't directly produce anything.

Now, if your primary objective is not to run a website but something else entirely, then it does make sense for your infrastructure and the salaries of the people maintaining it not to be the largest part of your budget.