Sorry about the title. While reading some posts, I noticed that some campaign participants seem to be posting essays. Have you noticed the same, or is it just me? If you also notice this, do you think it's healthy for the forum?
Well, a post can be long and still contain no relevant ideas but just some beating around the bush. Some comments can be short but still contain a very informative idea; that's also how some comments can be long and also contain a very well-detailed explanation about the topic of discussion.
A comment can be equally short but irrelevant to the topic of discussion, so it all depends on the member and how he or she wishes to make their post.
Apart from the fact that the campaigns in which I have ever participated required me to make comments that were not less than 100, 150, and 200 words, respectively, I normally like my comments to be very informative, right from when I was a newbie. From my post history, you can tell that right from when I joined the forum, I didn't write less than 200 words in most of my posts. That doesn't mean that if I come across some topics that require me to make only a few words of comment, I will.
Although some members think that it's when they write long essay, that's when their post can be counted as a quality post, or that will aggravate the merit source to splash some merit.
Conclusively, a comment can be an essay but useless; a comment can be short and still useless. Vis-à-vis, a comment can be short and very informative, just as a long comment will also be very informative. It all depends on the commenter and their ability to use either a short statement with one or two paragraphs to pass on their reasonable opinion, while some people actually like to give a very detailed explanation with long paragraphs, making sure they link together every possible scenario and example that would help the reader understand what they are saying.