Construction of a solid post poses as a strain to people. And barriers like language, computer adaptation adds to this problem.
Bad and jaw dropping low quality post is not incurable even to the chronic bad posters. Am still on the developing stage so I can say I also have an effort to put in.
Why do people make bad post
A. no idea but still want to make a post: some people lack idea or have little idea of what the want to write on and would not take the time to build the idea and make it logical for the community when posted not withstanding they go on to make the post.
B. They are in a rush:people can be in a rush to get there post count, want to be part of the first people to drop a reply to a post, no matter the reason for your rush it makes you to go on and deliver an half done post
C. To bump a thread: bumping a thread is not against the rule but it has procedure, projects can hire some hoodlums to come on the forum using multiple account to spam and bump there thread
Making nice post is all about your desire to do so, don't wait till you become an expert but the small values and culture you can put into your daily post and your quality post would define you