[SkyMarshal]

For the purposes of the survey, they either need to list 'GNU/Linux', or if not that then every major distro of GNU/Linux plus an 'Other Linux' option. Otherwise their results will be filled with inaccurate data. Hence OP's suspicion of satire.

[kevinastock]

I fully agree it's satire or a really bad survey, but that doesn't disqualify Ubuntu from being an operating system.