"We don't generally talk about our strategy ... because it's strategic. I would rather have people think we're confused than let our competitors know what we're going to do. That's an easy trade-off." -- Larry Page (Google, Inc.)
a) alleged rumor #1 irena = Nineveh
answer: it can be formally proven that this renders false, since both personalities behind these avatars have a very different "Erdős number".
b) alleged rumor #2 irena = Emma Bond
answer: false. text analysis shows that these 2 avatars were backed by very different authors.
c) plenty of other rumors will not be commented, since it's pointless and boring.