They won't be able to effectively advertise it. In Russia websites can be blocked without court right away. Means as quick as some domain reaches at least some notable traffic it will be blocked. And in this case cat will be winning the mouse. Cause mouse won't effectively reach the audience.

That's also the reason why Navalny's team is heavily utilizing public resources backed by big tech (e.g. Google docs, Appspot, etc) with a hope that big tech won't ban the team and Russian government won't be brave enough to block the entire platform.

Also a couple words about resource blocking: every ISP is obliged by law to install some kind of DPI solution to block traffic. And the solution sadly became much more efficient in recent months than it was years ago.

They used several ways. Website, Telegram bot, mailing list, app. Website and telegram bot are reported to face DDoS, though website seems healthy now. App is blocked. Mailing list managed to deliver me advice of "Smart Vote", I'm surprised now it was not blocked as a spam by all major mail-providers.

They have bot in telegram @smartvotebot