Try spacing out your posts a day apart, and if other people post then skip your post for the day. Keep the community visible without spamming and hopefully people will join after a while.
This is what I did in the earlier days of !birding, and I rarely even post now since there are more contributors. (partly because I’m also running out of photos to share)
Agree with your opinion. More than just them being unhappy, also for the child to have a poor childhood because the parent never wanted to take care of another human