Users care about data, not software
NewsForge — “So why is it that so many free software projects let data import and export functionality fall through the cracks? Some developers are wary of the idea because they worry that if they make it too easy to migrate away from their software, they will encourage users to abandon what they are working so hard to develop. That amounts to holding users hostage, and is more likely to be an issue in the proprietary software world. Even so, Microsoft Outlook offers more export options than Mozilla Thunderbird does, and surely that company has a greater vested interest in locking in its customers.”