Just got back from the Oshawa rally. I counted 5 people including myself who I know to be registered babblers. There were somewhere between 150 - 200 people there, and the participation was enthusiastic. I understand a lot of Oshawa-ites opted to attend next door at the Whitby rally, 'cause that's Flaherty's riding, and he's more evil.
(ETA: I also got a big and pleasant surprise there, but I'll be enigmatic about that for the nonce. )