I am also unpopular too. Sometimes, people here on Wrong Planet are interested in replies to topics I participate in, but it does not seem to happen very often. No one has ever wanted to be my friend on here either. I never had any friends growing up, and it is still very hard for me to make friends anywhere. When I was younger, nobody ever socialised with me in school or in my neighbourhood. My parents signed me up for social groups for other kids with autism, and none of them really liked me much either.
More recently, I have been attempting to meet people in my community on meetup.com, and I have had to leave some of them because I was no one ever talked to me. I was also in a car club, and no one was interested in me or my car, and no one ever talked to me there, so I just quit going to that club.
The only other online forum I have participated in was on a web site all about one of my special interests, and I would still be on it today, but something unfortunate happened between me & one of the other members, so I stopped posting on it.