> and I think it's important to remember that both want user freedom
As a free software activist, I haven't found that to be true. Remember that the term "open source" was created explicitly to sell the development methodology to businesses without talking about the ethical issues.
When developers write software under the umbrella of "open source", many aren't even aware of software freedom issues---they may be doing it because their peers are doing it; because they were told they should do it for a portfolio to get a job; or maybe because they like sharing their software with others. Some businesses liberate their code merely for contributions or press.
That's certainly not the case for all open source developers---there is, as you said, an overlap. But it's important to use the term "free software" and talk about software freedom to start those discussions and get people thinking about software freedom.
As a free software activist, do you think our effectual software freedoms would have advanced as far as they have without OSI's emphasize on the practical aspects of libre software? Do you think Eric Raymond and Bruce Perens could have made similar inroads with businesses if they had stuck to the (ambiguous, IMO) "free software" moniker?
I can't speculate what the norm might be today if businesses were talking about free software instead of "open source". It might have provided benefit to the movement, or it might have diluted the term. Ironically, in making the distinction between open source and free software, we have the opportunity to clarify its meaning and make a clear distinction between methodology and ethics/ideology.
Open source---regardless of whether history would have been different if the term had never originated---has contributed significantly to the dissemination of free software and the amount of software released under free licenses. But it's completely disproportionate to the amount it has advanced the principles of software freedom.
Is it good that more people are using free software? Is it good that there is so much of it available? Absolutely---I'm able to run a fully free system, down to the BIOS. But I'm among a small group that does so on principle, and will not abandon freedom for proprietary software that is more feature-rich, performant, etc.
As a free software activist, I haven't found that to be true. Remember that the term "open source" was created explicitly to sell the development methodology to businesses without talking about the ethical issues.
When developers write software under the umbrella of "open source", many aren't even aware of software freedom issues---they may be doing it because their peers are doing it; because they were told they should do it for a portfolio to get a job; or maybe because they like sharing their software with others. Some businesses liberate their code merely for contributions or press.
That's certainly not the case for all open source developers---there is, as you said, an overlap. But it's important to use the term "free software" and talk about software freedom to start those discussions and get people thinking about software freedom.