IMO, an obscure table on Wikipedia is not going to make anyone stop using software. EULAs were designed to make people "click through," and even if they DID read them, they generally wouldn't care if the software did what they needed it to do. I propose instead that whoever is interested in making Free software that they make quality software that people want to use. Apache, Firefox, and FileZilla are good examples of this (ok FileZilla may be stretching it, but see below). GIMP and OpenOffice are not.
Personally, I will jump through some hoops to get stuff working, but if it seems like it's going to be a time-sink just to edit a photo, open a .docx file or some other trivial task, I'm going to download and use whatever gets me there faster. I might get downvoted for saying this, but I'm just not going to waste my time configuring half-baked software when there are quality commercial alternatives available (and same goes in reverse, in the case of Apache, for example).