Nostr Reviews on Nostr: Proof of work isn't necessarily proof that the post including that work is not spam, ...
Proof of work isn't necessarily proof that the post including that work is not spam, but it makes it less likely. Someone spamming the network and needing to do PoW for every note they post would become computationally prohibitive.
That said, most average users are not posting from clients that include PoW by default, so only showing notes that include PoW would exclude the vast majority of notes. It is something that I wouldn't be surprised to see explored more fully as Nostr gains more adoption and spam becomes a much more serious problem. Other than a couple short-lived spam attacks on the network, it hasn't really been a major issue yet.
It is possible to follow hashtags, but it is entirely client dependent. Unlike following another npub, nothing is added to your follow list that is saved to your relays when you follow a hashtag, so following a hashtag on #Amethyst will not translate over to #Primal, for instance. As for #noStrudel in particular, I am not sure if it is possible. I have not found it anywhere, but noStrudel has a lot of corners I haven't yet explored. Perhaps hzrd149 (npub1ye5…knpr) can shed some light on this?
That said, most average users are not posting from clients that include PoW by default, so only showing notes that include PoW would exclude the vast majority of notes. It is something that I wouldn't be surprised to see explored more fully as Nostr gains more adoption and spam becomes a much more serious problem. Other than a couple short-lived spam attacks on the network, it hasn't really been a major issue yet.
It is possible to follow hashtags, but it is entirely client dependent. Unlike following another npub, nothing is added to your follow list that is saved to your relays when you follow a hashtag, so following a hashtag on #Amethyst will not translate over to #Primal, for instance. As for #noStrudel in particular, I am not sure if it is possible. I have not found it anywhere, but noStrudel has a lot of corners I haven't yet explored. Perhaps hzrd149 (npub1ye5…knpr) can shed some light on this?