@mhoye yeah, there's good stuff, but ultimately there were two key issues (and lots of smaller ones and compounding effects)

1. it's largely based on reactive bots acting to delete things after the fact, so The Stuff still gets seen, and seen differently by people on different servers, clients, etc.

2. the attackers know the limitations and exploit them, moving to parts of the system that are not covered. Rather than spamming channels, they send DM invites with profile pics, for example. Such arms races are inevitable, but matrix can't adapt across the ecosystem nearly as quickly.

There are good community tools. Matrix itself gets used as transport so that one community's banlists get published to a channel for others to apply.

Again, though, I'm only reacting to the "nothing comes close for mod tools" aspect. There's not much else around like matrix, for good and bad. And none of it detracts from the rest of the thread.