Quora has blocked me too. For Tamils there is no last name but the idiots running quora insist that everyone should have a lastname. http://psankar.blogspot.in/2015/01/naming-policy-deactivated...
People insist in demanding surname, not just for real reasons, but to actually spite him.
Greece even made a law after the king was deposed making surnames mandatory (and then promptly declared the guy noncitizen for illegally not having one)