Allen
Hotshot
Joined: Oct 1999
Posts: 8,841
Ohio USA
As you note, the Firefox survey does not cover everyone. That "weakness" was discussed in the article.
For a while, I was NOT going to make the above post because the results can be questioned.
However, they did consider the other browsers and concluded this new type of information was "better than nothing" to provide a more complete (not necessarily more accurate) picture of the entire GPU market (including non-gaming).
Posted for what its worth -- and the value is open to question