Keeping russians from reading unapproved media. You know, the kind that tells something closer to the truth than "ukraine loves russia for saving them from their jewish nazi leader".
I doubt that. The majority are using plain old proxies and VPNs. A very temporary attack on Tor would hardly make a dent.
There's near-constant ddosing on Tor of darknet markets, some if it might've spilled over. Even more likely a random group is doing it because they can. Russia is definitely not the only or main choice even if they are on everyone's minds currently.
