As a Linux user you will have to ocasionally pay for the Proprietary sins of others. Usually this in the form of recieving an email attachment in a proprietary format.

A new campaign by the FSF outlines the 7 sins of Windows: 1. Poisoning education, 2. Invading privacy, 3. Monopoly behavior, 4 Lock-in, 5. Abusing standards, 6. Enforcing Digital Restrictions Management (DRM), 7. Threatening user security.
The campaign advocates to use Free Software instead of windows.

The Free Software Foundation (FSF) today launched the next stage of its "Windows 7 Sins" campaign at http://windows7sins.org, making the case against Microsoft and proprietary software by writing to 500 leaders of the most influential nongovernmental organizations (NGOs) worldwide, asking them to make the switch to freedom-respecting free software, and to help foster awareness of the ethical impor

Some might say that the mission of Ubuntu is to cleanse the upstream projects of the "sins" that make them hard to deal with from the vantage point of the average user. Put more plainly: Whether it's true or not, I think many users out there (myself included) somehow expect Ubuntu to fix every d@mn thing that's broken in the Linux user experience. The problem is that Ubuntu is not Linux.

Committing these sins will cause you to burn in Android hell and you will have no place in the Market. Kunal Deo reveals all and he really means business...

These days, the FSF is spending its time attacking proprietary software, like it did today, August 26th, when it went after Windows 7 in its new Windows 7 Sins: The case against Microsoft and proprietary software.

An average user may be an over-used expression, but it is still important to keep in mind what it means. For the most part, I agree with this article describing the average user, but I disagree about the average user's technical abilities.

The new version of Microsoft's Windows operating system, Windows 7, has the same problem that Vista, XP, and all previous versions have had -- it's proprietary software. Users are not permitted to share or modify the Windows software, or examine how it works inside.

I often see the sentiment expressed that desktop Linux is “too hard” for the average PC user. These arguments seem to completely overlook the fact that an average PC user will never install his own operating system.