I came from EP too. I think you have to drive the discussions on here from time to time. And not just adult topics either but something else too with the idea that open ended questions may garner better responses.
I think there are niches here and people have an agenda. For instances various tribes on here focus on themes like
1) adult themes
2) politics
3) religion/ spirituality
4) depression
5) survey questions like do you like xyz
6) pets
7) and others
You kinda have to find your tribes here and be a thread creator from time to time. If you are waiting for someone else to make threads you like while complaining your sorta part of the issue.