This is just an article linking to an article[1], which itself links to a Google translation of an article written in French[2].
[1]http://www.virtuallyghetto.com/2013/09/vmware-nested-easter-...
[1]http://www.virtuallyghetto.com/2013/09/vmware-nested-easter-...
The virtualghetto.com article is referring to that second easter egg (i.e. the Pride mode) and telling you how to "unlock" it.
The post linked to here on HN is by M. Elizabeth Scott who created the Pong OS easter egg while at VMware.
A version of the code of the Pong OS can be found here: http://sourceforge.net/p/vmware-svga/git/ci/master/tree/exam...
From a cursory look, I don't think it has the Pride mode.
...are a rainbow, a symbol of gay pride[1].
i originally came across it here: https://twitter.com/scanlime/status/502239009595461632