Community Help: Commenting

I want to know why I am being told to use at least fifteen letters in my comments...what did I do wrong? Many of my comments are far less than fifteen letters long because that is how I word them sometimes...I am not being profane or defaming anyone  I am simply being myself...why am I being told to use at least fifteen? I pay to use this site and have been here almost five years. Why am I being singled out? I am trying to enjoy what time I have to be on the site and now I am being told I have to use at least fifteen letters in comments...there have been many times when I have written almost a third to half a page in a single comment! I am not spamming anyone when I write a short comment...if I wrote very short to single word comments consistently and wrote nothing else I might see the point of all of this...do you want the writers who are at ease in writing shorter comments at times just as I do to use what amounts to filler, words that mean nothing to the person writing the comment much less the writer receiving said comment? If I have nothing to say about something I have read I do not leave a comment...there are times when a few short words express what I have to say...is that wrong?    I have done nothing wrong.