Posting a short line is not supposed to be a big deal as long as it is meaningful. Many people are posting two lines in the forum and are still not criticised because it is meaningful and helpful to the community people, but some newbies are trying to copy the high-rank members by posting short-line posts when their own have no meaning, so sometimes if what you are trying to write can be meaningful with a short line, then I don’t think there is a problem with that, but it needs to be meaningful.