IMHO:

Many of us are on a very limited 'gun' budget, (either by choice or circumstance). Buying a Krag is a big investment. We invest money in books and time in research.

We enjoy restoring Krags that have been 'abused' to return them to a 'correct' and serviceable state.

We are students of historical arms and always open to educating ourselves and learning more.
It is a kind of responsibility to put forth an effort, to learn, and be intellectually honest and truthful.

I am happy to share information, knowledge, suggestions, and opinions with people who are new to Krag rifles & carbines and intend to use and enjoy their Krag or acquire a 'rescue' gun for restoration. I learn from others and their posts all the time and I am grateful. I learn a lot by trying to help others with their questions.

Many of our posts and photographs are a form of 'Intellectual Property',
which we choose to share with fellow collectors and enthusiasts.

Sometimes we just have to do our own homework.

I can't help but resent it, when I feel my time and effort have been used as a 'public convenience'.

FWIW - I see nothing wrong with making a profit on the sale of a gun and using it as a way to 'upgrade' one's collection.

It's all about attitude. Don't expect others to do all your research, (for free), so you can make more money on a quick 'gun flip'.

p.s. - I did put forth a good effort and reasonably addressed all of the OP's questions in my responses. (I'm done with this thread).