No, even in that case a link alone is not a good answer. Why is this software being recommended? What makes it good? How do you use it? How can you install it? You can always add a small explanation. If you just post a link and nothing else, you are not giving us any information about this software and what it is. I do agree that software requests are a special case and a link is moer of an answer there than anywhere else, but adding a short description of what the tool can do will always make the answer better.