vinney...axkl on Nostr: Interesting or totally moronic: generating a new random nostr keypair for each post, ...

Interesting or totally moronic: generating a new random nostr keypair for each post, but including a signature on each note to prove that a single particular public key wrote them all (could be an npub or another scheme).

the point being to, for specific use-cases, remove the relevant private key from the loop wrt to nostr clients. (you'd use whatever signing software you like. PGP, say.) use nostr as a potentially-unsafe broadcast mechanism, segregating the key you care about from nostr entirely.

then you could use a client like anonostr.com - or really any client at all, with a new keypair each time. saving you mental overhead in your opsec endeavors.
if you wanted discoverability and something like a chain of connection between the notes, you could use a unique hashtag. and readers who follow this hashtag would have to verify that your generic key "meta-signed" the notes, since their nostr clients wouldn't do this automatically anymore. ....until someone built a nostr client that had this feature