It all boils down to experience, for those of us who have built a few rifles this would be a non issue, our types take way too much for granted and think that others will know "stuff", when they really don't have a clue like most of us were when we started out.
Case in point; a friend who lives a couple hundred miles from me had my gunsmith friend build him a Kibler Colonial, beautiful rifle. I had put together a nice SMR so he decided to build one himself.
My friend is a very intelligent guy but short on tools and crafty experience, very short. He is new to flintlocks but hasn't haunted the gun building sites like most of us, he had zero knowledge of any aspect gun building.
As many of you might have noticed, I am a picture guy, I do my simple minded builds and document everything so I can tell a newbie how to do something and have a picture to illustrate what I am talking about. You would be surprised how often, almost daily, that I see a question asked here and run out to the shop to take a picture to include in my answer. I have already done it once today.
My friend and I got together on Facebook messenger (I don't have a smart phone, don't want one), he would send a picture of where he was at on his build and what had him stumped, I would fire back a picture of what he should do and what the end result should be. We did this back and forth for at least a month as his gun took shape.
One thing that I have found as a teacher of bow making and sharing gun building experience is that people just don't follow instructions very well, they tend to go off on a tangent and have to be brought back down to earth. Stuff that we see in bold print is Greek to them.
My friend had the biggest problem with parts browning with LMF, a simple process to me. I initially told him to stop at 220 grit on his metal sanding but the kept sending me pictures of very streaky parts that would brown in some areas, turn black in others and stay bare metal in others. When he finally threw up his hands in frustration and said he was putting his gun together even though the browning was just so-so I questioned him and found that he had just about polished his metal before he started, he had read part of the LMF instructions but not the part about sanding to 180 and went for a high polish mentioned at the end of the instructions, my advice fell on def ears
I bought my SMR kit at a bargain from a guy who realized he didn't have the skills to put it together, not everyone is cut out for this stuff.
I see some pretty lofty advice given to beginners on all of these building sites, some so technical that I couldn't even follow it, giving this type of advice to a beginner is only going to confuse him further.
We should help these guys out with very simple step by step instructions that make sense to them that they can follow.