How important is 508 and / or WCAG compliance on your website? Is your site consistent?
How important is adherence to various accessibility guidelines when designing a website, especially if you don't know who will be using your site?
Using HiSoftware Cynthia Says Portal , I actually checked StackOverflow and found that there are only a few warnings for section 508 compliance, so I would assume it is easier for the disabled to use Stack Overflow (although I haven't checked anything other than the homepage).
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I don't know about the commercial sector, but it is necessary for the public sector. Generally, there are reviews that any software project must go through in order to ensure the product is 508 compliant before release.
Also, when I give the software demo, the first question from the audience will almost always be "Is your product 508 compatible?"
So, if you are planning to do business with the government, make sure your software meets the requirements.
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