I love Stack Overflow, and I wish a vast profit to the people who created it.
But I worry about creating indispensible privately held repositories of knowledge.
Google appears to be going evil. Facebook appears to have been evil from the start.
What guarantees do we have that Stack Overflow won't become the same ghastly sort of thing?
Wikipedia appears to be staying good (apart from sticking those ads everywhere). I think mainly because everything it is can be easily copied and re-used by anyone else.
In the terminology of Free Software, can Stack Overflow be forked?