Inappropriate content / flagging not working

I made a community post this morning (gunfire heard) and had a couple of inappropriate comments so I flagged them. They disappeared from my feed, but others continued to respond and I continued to get messages/alerts on my smartwatch so something's not working right. On a related note, what is the process for permanent ban of users who consistently violate community standards? I'm pretty sure no one finds the comment "I farted", in response to a gunfire heard post funny or helpful. This is always the same person btw. The spam that followed my post finally prompted me to delete it. I probably won't post again. Neighbors app is virtually useless like this.