These companies usually end up spending a fortune on advertising and overhead. One would 'expect' Twitters 'costs' to be low as well, I mean, it's a very simpl

These companies usually end up spending a fortune on advertising and overhead. One would 'expect' Twitters 'costs' to be low as well, I mean, it's a very simple service, and 'infrastructure costs' are not huge for them. And yet - they still lose money. Taking on a huge amount of money is an easy way to start being inefficient. This is looking like an 'Etsy' story.