I personally know a handful of converts that came to Traditionalism (from other faiths) due to the Diamonds. All converts were men.
The Diamonds are a little nutty on some things, and I don't like their constant anathemas of heresy, but...in our overly feminized, wishy-washy, "maybe, sometimes" world, the Diamonds presentation of the Faith as "yes, yes and no, no" speaks to people, mostly men. It works. Can't argue with results.
Finding the Dimond brother's videos actually helped me understand what was up with the church, and thus facilitated my journey into Traditionalism. Though I'm not about to "stay home".
I'm still working out BOD/BOB. I believe that there's no salvation outside the church. I'm also fairly new at this.