@kzimmermann @thenewoil Today it's both easier and harder: no special telco equipment, cheap data, cheap & reliable computers.
But it's harder because user expectations are so damn high. You can't just give a free email account to make them happy. And then there's abuse. Lots of it. If you run a wiki or any publishing platform, it will be filled with spam. And so, running a free service today has become a tedious, thankless job today