I recently turned my hosted Google Drive code editor, https://neutron-drive.appspot.com/, from being free to $3.99/year. Many people think I'm a dick for switching from free to paid. But something has gotta pay for the hosting and development time in the future. I also gave all existing customers a free year. So is this a total dick move? Or am I totally awesome for trying to make a sustainable product? Also what alternative ways of generating revenue are there if this is too much of a dick move?