Totally agree. Differentiating NSFW and NSFL is a must have. Right now I have NSFW turned on bc I occasionally want to see Ukraine combat stuff, but I've probably had to spend like 2+ hours blocking all the niche porn communities which is becoming untenable as every day a few more spin up. And I love the idea of a welcome/starter pack for new users; that's the other part of Lemmy that's really lacking - finding the communities you want to be a part of (if they even exist on the fediverse yet)! So many communities are ghost towns, other topic-based communities have duplicates or triplicate communities on different instances, etc. my strategy is to subscribe to communities as I find them in my feed, but having an index of the most popular communities curated for new users would be a game changer.