"Signing petitions with joke names" is a tradition - older than modern democracy itself.
The great Chartist petition of 1839 was signed Queen Victoria - several times, in different handwriting oddly enough - and quite a few other people of similar levels of improbability.
It's not about "looking authentic", it's likely just people having a laugh. Trolls, as we call them nowadays.
Biting the hand that feeds IT
