If Microsoft's "reputation" database can't tell the difference between a gambling site and an independently audited registered nonprofit public-interest charity founded almost 30 years ago, it is certainly doing you and your business more harm than good.
Last week, it was brought to our attention that our primary online donation form at donate.fsf.org was being blocked by corporate systems that use a Microsoft "network security" program. It seems Microsoft has labeled us as a "gambling site." As a result, many people were unable to make donations.
I have submitted a correction, asking that they remove the "Gambling" label and instead list us in their "Non-Profit/Advocacy/NGO" category.
We will avoid attributing this error to malice just yet, and wait for their correction. I will update this post if and when they respond to us.