I think it's normal to want others to respond, be interested and so on. Sometimes I forget that it doesn't mean that they dislike me, don't get me, are ignoring me, etc if they don't. There are often other factors, including shyness, not having made up their minds about how they feel about it enough to respond, not having gotten around to reading it yet, being afraid of rejection themselves, disagreeing or not clicking with you (which doesn't mean anything's bad about you or them), going through stuff in their own lives, not having time to post, not having enough similar experiences to identify, their own insecurities and so on. I am super sensitive to how welcomed I feel and over time have realized that often I need to be more persistent and thick-skinned than I naturally am inclined to be.