I think you're partially forgetting WHY we (most of us*) are strict noninterventionists, i.e. why we oppose "genuinely humanitarian" wars in addition to others: Imagine US intervention did right by people in other countries, and imagine we were invited over a "legitimate" government (whatever the hell that means) or some majority or supermajority threshold of people, making the intervention compatible with national sovereignty. We'd still be unwelcome in the eyes of their minority constituents, sure, but so would their own local government, so only a voluntaryist could consistently take issue over that. The bigger issue is that it STILL doesn't do right by US soldiers and taxpayers, and moreover, that's directly relevant to our own situation and fate as a country. Russia is doing something similar right now in their abuse of Russian taxpayers and soldiers, and they also seem to be placing Crimea under a martial law scenario, which is wrong whether most Crimeans want them there or not. Right now, what Russia is doing in Crimea is a problem for Russian and Crimean citizens to concern themselves with.
However, some other government committing a wrong on the other side of the world is simply not the biggest problem on our plate right now. Focusing on condemning Russian intervention would be idle moral judgment for its own sake, and while there's a time and a place for that, it's a hell of a lot less relevant to the problems we're facing as a country. Barring reckless interventionism, we can't do anything about Russian intervention...but we can and must denounce and oppose US intervention for our own sakes. Should we really have to point out "and Russia's wrong too" every single post just to keep up our street cred while we're worrying about the direct impact US intervention will have on Americans? Of course Russia's wrong, just like every government in the history of the world has been wrong for virtually everything it has ever done...but is it really any wonder why people worry more about continued US intervention threatening the future of the United States than Russian intervention violating the NAP and arguably national sovereignty on the other side of the world?
*I haven't been clear about this point, so I'll concede a point: While the forum majority is strictly noninterventionist, we've always had a big tent from the beginning. There have always been some paleocons and such who support intervention under limited circumstances (such as if we're invited by a "legitimate" government/majority and it's simultaneously in our "national interests"), but who still agree with Ron Paul's foreign policy as a general rule and condemn the all-consuming pursuit of a global empire. pcosmar's views for instance are more along these lines. I'd rather they were strict noninterventionists, but is it really fair to lump them in with those who "like Ron Paul on everything but foreign policy" and compare them to neocons and attack the forum's credibility over it? Their opinions will differ from the lockstep libertarian and lockstep Ron Paul take on the issue, but it hardly makes the movement "fake" just because not everyone is in lockstep, and it's also unfair to paint the forum with a broad brush and besmirch people who are strict noninterventionists...which most of us are.