A detailed and well-explained respond is very important. If the user wishes to explain in detail, he may write it as an essay for the person to understand. I do not believe this is a problem to be concerned about. I've come across some replies that look like essays, and when I read the first two lines, I know that this person is saying something relevant, whereas in other cases, you can tell that this person is just trying to write so that their response is lengthy, which happens mostly in the gambling discussion section. Quality posts cannot be judged by the amount of words you write, but the more you write, the less likely your post is being looked into to be called spam post.