skald89 – the people I know who call themselves Modern Orthodox Machmir are very Frum and are very serious about learning. Ofen they are more Frum than those who call themselves Modern Yeshivish. But of course there is a broad range both of people who call themselves Modern Orthodox Machmir as well as those who call themselves Modern Yeshivish.
It seems to me that the main difference is sociological. The people who call themselves Modern Orthodox Machmir are usually people who grew up in “Modern Orthodox” communities, and the Modern Yeshivish people are people who grew up in “Yeshivish” communities. This can end up having an impact on hashkafa since they may follow different Rabbanim and send their kids to different kinds of schools.
In terms of the moderator’s comment, I guess she/he will have to answer. I understood your comment the way you are saying, but I can see how it can be read either way.