Don't let it go just yet!! Review the posts you made that make your query. If they are not clear, rewrite them. If they are clear then set it aside. I keep a file that I call "Strays" or "unattached" and that is where I put people or info that I have a strong hunch on.
I really do say don't give up and only give it a rest because I have had contacts come along in response to posts that were 3 and nearly 6 years old. I am so glad that I did not let it go and only set it aside. I felt like I was just hitting my head on a wall and then there was a response to one of my oldest posts. This person was a cousin from the UK and another cousin working same line also found us. In a matter of 7-10 days I had connections with not one but two cousins. Our common factor just happens to that our Great Grandparent are siblings. Hang in there!!