wa alaikum salaam,
That is very true. A good way to get replies is to find threads you are truly interested in, or have knowledge to share in. Post in those threads. Soon people with similar likes will recognise you and search for your posts. Go to threads about subjects you honestly want to know about. Ask legitimate questions on them. People are always willing to help. Plus, you will gain 3ways, You will learn, others will learn just from seeing they had the same questions and you will enjoy the forum more. Be certain to ask real questions, avoid asking questions, just to be writting a post.