The most generic and correct term is `Free Software'. Bitcoin is free software, not open source.
Open source software has got no philosophy involved and pointing users to it
is a big problem because they will only get a fraction of what
Free Software and the Free Software Movement are all about..
If you do not know what to post, do not post. You can research more about open source and close source before posting about it. If you know your post will be irrelevant, why posting.