I don’t know if such an admin tool as you describe already exists - perhaps the grafana one meets that need? - so I will leave it to those who choose to install the code and become admins (even of just a personal instance) to comment further and give feedback.
That said, the community that you pointed to might be in a weird lockdown state, since I noticed that it has zero active mods. See the sidebar on the home instance and then the modlog offers the further knowledge that the only prior mod has been banned from that instance. If you want to revive it, you could appeal to the instance owner and become the new kid of it?
And that situation illustrates the difficulties that people face when coming here: this place isn’t quite a ghost town, but it is more empty than it is full. The people that have thrived here so far are those who approach it from an IT hobbiest standpoint and are willing to roll up their sleeves and get to work building it. But most people are not willing or capable to do likewise, which turns many away. The tools are still being built, and definitely lack polish atm.
But we are building them nonetheless (well, Mia is:-P, though we can help with suggestions!), steadily over time. So I am less concerned about current number of MAUs than in seeing the challenges be overcome, such as building these tools. Although that requires funding which in turn requires some level of MAUs, thus I am ecstatic about these subscribable blocklists to help keep people from fleeing this place!! 🤩