First sorry for my bad english. This kind of answers is much more difficult to write for me than technical one.
Also, I may be sometimes out of scope of the question here. If you find I am, please forgive it, but I think we are more around a 'subject' here than only in the 'scope of a question'.
I am still quite new here in BSE. But as you said, metaphor_set, all this became a "hobby quite fast".
To me, there are two aspects here: the general one and the specific question which have motivated this question.
- About the referred bounty question (maybe out of scope and opinion based chapter)
We don't have so much here the usual comments like 'this is a bit broad, what do you want to know exactly ?" or "what have you tried so far ?". Except from Cegaton, who in my opinion was right.
But the question about this question (or many others) is "what is the question exactly ?". What the OP means here ?
To enlighten a bit (in this particular case), google about the OP. And so you'll discover that the question is surely not about creating trees or even about how to give the good lighting to the scene (or am I totally wrong here ?).
So, what is the question, and why the OP did not react to the comments saying "here is what I exactly want to know : ...".
In fact, he commented once, in response to Shady's (really great) answer. And to tell the truth, I dislike a lot this comment, because I interpreted as "look I can do the job without your answer". Subjective interpretation ?
Here is the comment from the OP :
This was the image I put together without your tutorial:
Well... To summarize, I still don't know what is the expected answer for this particular question. And in my opinion, the given (again really good) answers will be much more useful to people in general than to the OP in particular.
I think this kind of site needs mainly two things : enthusiastic (more or less) answerers and moderators.
But I see no mean for the moderators to say something like : "hey, enthusiastic answerer, I will remove/moderate/cut your answer which is too long. This is quite a tutorial and this site is not for that". Or the answerer will be no more enthusiastic, and maybe he/she will be no more an answerer... don't you think ?
So the subject could be addressed in another way : Blender is a so huge tool for which a lot of learning and experiments are needed to use it.
And answers (short and long) are here to enlighten the various possibilities offered by Blender.
In that way, BSE is a mine (a repository) into people can dig, find these various possibilities and choose by themselves what is the more appropriated to their need.
My opinion is "let the answerers do what they want so far they really respond to the question and write a qualitative answer".
If the answerer wants to spend time for a long explanation, let him do.
1/ Writing an answer is sometimes painful. Making it in Blender, take some screen captures or gif, mark the pictures with indications on it with another tool, putting that on disk, going back to the answer redaction, Ctrl+G (I hate 'kbd'), back to disk to drag the pic...
Really better tools may be needed (or they exist but I don't know them ?)... but in the other hand, this is a way to shorten the answers (!).
2/ Duplicates are hard to find.
3/ We are often forced to rewrite the same things. In particular Blender's shortcuts or for basic operations (add, extrude, scale, ...).
Some kind of catalog may be useful, so that the answers could be shorten a lot.
4/ For many questions like :
"I am new to Blender, but I have uploaded a complex model, and I am following this tutorial and I WANT this result but using this complex model but now I am stuck, so help me"...
The best and shortest answer could be "if you really want to learn, start little" !