They're negatively affected by a lack of openness. Some proprietary XML nonsense that's well-documented makes interoperability a week's work, maximum. Meanwhile, Microsoft's incomprehensible "open standard OOXML", supported by every document editor I care to name, is a huge impediment to interoperability. Limiting myself to even the well-designed ODF format means there are features I can't implement in my software: standardisation comes at the expense of innovation.

In software, the problem is closedness, protectionism, and undocumentedness, not proprietary wheel reinvention.