IMO, all Russian translations of "LessWrong" are too long, and the transliteration is too awkward, especially considering how hard it is for most Russians to pronounce the word "wrong" correctly (though I admit I like how it sounds when spoken in a thick Russian accent). My spoken English is above average compared to other Russians, but I still stumble on this word every time I have to speak it.

I'd just go with lesswrong.ru -- while it's still available.