No. While I appreciate the stubborn display of "she couldn't possibly have meant to say we're not good enough", that's exactly what is being said: that there's no perceived benefit on MP's part of discussing the business plan here. You are cordially invited to open the eyes and ears and shut the mouth, basically. Take it as a learning experience, this is how things are done sort of thing.
So, basically you're saying that there is a guy who's trying to run a new business. He, of course, has a solid business plan, is asking for investors money, but is reluctant to tell anything about said business plan? That's preposterous.
Perhaps if this venture does well on the middle to long run, and if he wants to start something else in a few years, the he could consider doing it this way, but right now, even the with the "relative" success of MPEX, it seems presumptuous.
This misapprehension seems chiefly the result of you being new around here, and so your perspective is flattened on one end, the so called "more than 100 years ago" effect. There's nothing wrong with that: if you manage to survive in Bitcoin on the middle to long run your estimations of things will necessarily change to better align with reality.
There is no misapprehension, MP has obviously managed to run one venture which does OK, and that's pretty much it.
I'll concede that in bitcoin world, managing to run a venture for more than 6 months and not scamming the hell out of every noob is actually the exception and it does put him above 95% of wannabe "entrepreneurs", but I still don't consider this a good enough of a track record to invest solely based on reputation.
Now, as you said yourself, you're entitled to your own opinions. You obviously have a great consideration for him and it's enough for you to consider investing solely based on his reputation, but as far as I'm concerned, it's not the case at the moment, and I guess that I'm not the only one thinking that way.