I don’t want to have to spend time strictly moderating my own feed

You can choose to filter those out, for example Seedit by default filters out NSFW content. Eventually we’re gonna have labeling services, similar to Bluesky where you can subscribe to someone’s else labels of spam/nsfw/etc.

because if my client happens to cache anything illegal

Plebbit is text-only protocol, also it is end-to-end encrypted. Also you could set your own node to never seed anybody else’s content.

The mention of cryptocurrency or blockchain also provokes quite a negative feeling, it’s basically just a haven for scams and useless things, and any kind of integration with it I do not want to be involved with.

We’re not a crypto project, we do have integrations with crypto, like blockchain name systems but that’s a good thing because they’re more censorship resistant than traditional DNS