I think if you want to lay out your business plan for people to use for their domaining business, that's great.
But I think what people see happening here is you complaining about TBR prices and then inferring that people are stupid because in your business plan, those prices don't make sense. You make it sound like everyone should be taking a very measured low-risk approach assuming the business needs to make a consistent profit and driven strictly by those numbers. Your financial experience is defining your perspective.
Everyone else is just saying there are a lot of different approaches to domaining. And I don't think _any_ domainer is strictly one type of investor, everyone's portfolio is going to be a mix of domains you bought for personal reasons, hobbies, charity, commentary or critique, development, long & short term resales, PPC, traffic, link equity, expanding your own niches, locking competitors out of your niches, etc... There are many reasons to hold domains, and I highly doubt anyone has a portfolio of significance for just one purpose alone.