I would be sceptical to any news that's hard to fact check these days, news pertinent to Russia in particular.
Anonymous really is decentralized, as such most anyone can claim to be part of Anonymous. They, or I should say we

are not _just_ script kiddies.
Though most of the impact of Anon stems from the sheer number of compliant foot soldiers. Most of anonymous simply put their hardware to use, and are in effect just nodes in a massive DDoS. (I suspect very many don't even realize they are breaking laws running various commands they found on an image claiming to be some operation for justice)
Then there's the hacktivists/grey hats, and of course the LulzSec types that simply just pick random coloured hats and do whatever. Chaotic evil, or chaotic good - depending on who's judging.
There's also quite a large chance that anyone actually having the skills and then luck with some exploits will be or have been sympathetic with Anonymous, and as such share the "glory". It is more scary for the victim (or aggressor in this instant) that they are under attack of the many, rather than simply one talented person getting lucky.
They are legion. We are many.