Comment by machomaster

0. Well, it is being done when possible. But it's not a 100% way of reaching people. 1. State terrorism. People are genuinely afraid to give their email addresses, and for a good reason. 2. Email delivery. Email doesn't work as good as you think. In addition to the typical technical email delivery problems, there are also specific to Russia. Many people are using local Russian email services. But those have shown to be dependent on Kremlin. For example Smart Voting lists had "strange" delivery problems for recipient in the mail.ru service (one of the most popular in Russia).