Of course I agree about the spamming but too many groups on Lemmy, not just NSFW, die a slow death. They may start out with a good amount of subscribers. There is daily activity. Then you see things like last post was 4 months ago. I had put the time in to create some groups on Lemmy. But they slowly died as I became the only poster. I no longer even visit them and only spend my time in a few Lemmy groups that continue to have active participation.