Originally Posted by
SamRF
I mean, I've literally said in that post that it's only truly the case if you have a random sample. However, as I've also said, true random sampling is usually impossible. This doesn't mean that those statistical measurements won't be used or taken into consideration (they would be useless if it only gave meaningful information for true random sample). It's not accurate but gives you an idea of what the true accuracy would be when you afterwards take into account how representative the survey entries are.
It's true you need more surveys to confirm this and some results may be up to interpretation but 2700 entries is still quite a lot, imo you can't say the results are meaningless with such large amount of entries assuming vast majority of those were indeed from active FFXIV players (which is a fairly safe assumption to make). Consider that this survey reached more people from the population than many actual (scientific) researchers (any topic) ever hope to be able to reach for their study. It's more than valid material to work with and perhaps right now the best source of feedback for the developers considering the alternative feedback mediums. (It's much better information than the usual feedback on these forums with a thread with perhaps 100 likes or a couple users going back and forth on an issue.)
The fact that it's by far more hardcore players you reach instead of casuals isn't that problematic imo, because casuals likely don't care nearly as much about job satisfaction as those "hardcore" who spend much more time in the game.