I have seen this more and more and it’s getting out of hand. A while ago, a support topic and it’s solved but people kept saying a solution or saying “What 2nd person said”. I had asked the first person saying, no need to reply “What the first person said.” The second person say it the same and it’s getting out of hand. That is not a good set of being a good member. The best way is make sure that there is no one has solved it yet. Asking your self your; Is there any user had posted this same answer or a solution? If so, just don’t do it and it will reduce of clutter in the thread.
I will summarize this.
Relying a solution to a topic that is been solved or saying “What the person above said.” This is example of not being a good community member. Ask yourself a question, is it already solved or it is duplicate or is that a good or bad post? If so, don’t do it.