Raw numbers don't mean very much in the Middle East, where running into the streets to demonstrate, usually but not always against the Great Satan, is the national sport. It's more fun than evening prayers at the mosque.
What is impressive is the simple fact of the outpouring of popular sentiment in Tehran. Lifting even a finger to mock the indifference and arrogance of the Supreme Leader Ayatollah Ali Khamenei (Impertinence Be Upon Him), or even President Mahmoud Ahmadinejad (Palaver Be Upon Him), is asking for a hard thump on the head, or worse. Usually much worse. More by Wesley Pruden.