> Can I see Nostr replies here?

It depends on your definition of "Nostr replies". Nostr is not one monolithic thing like Twitter or Telegram. Nostr is at least three different things: Nostr private key, Nostr messaging protocol, and Nostr network.

We got used to thinking about each social media solution as one monolithic thing due to decades of influence by traditional VC-backed platforms that try to register a trademark, expand fast, compete with other platforms, and keep users inside their closed ecosystems to monetize them. In reality, good decentralized social media solutions are modular.

So yes, you can see all Nostr-signed messages that were submitted to the same Spasm instance. However, you cannot see Nostr-signed messages that were submitted to the Nostr network only. That feature will be added a bit later. You can already see messages from both Spasm and Nostr networks on the author page of any up-to-date Spasm instance, e.g.:

https://monero.top/authors/npub1kwnsd0xwkw03j0d92088vf2a66a9kztsq8ywlp0lrwfwn9yffjqspcmr0z