There is currently a fee bug with Monero, that the wallet doesn’t automatically bump the fee when there is a backlog. This fee bug is causing sync issues with many wallets. The bug has already been solved with Anonero.io, and other wallets will be rolling out fixes shortly.
There are rumors that Nostr's creator is behind a spam attack. Simplified Privacy addresses this and has a ready working solution: https://simplifiedprivacy.com/monero-attack-nostr/
Tor Browser Onion: http://privacypkybrxebcjicfhgwsb3coatqechwnc5xow4udxwa6jemylmyd.onion/monero-attack-nostr/
@SummerBreeze
Technically nostr is quite weak compared ActivityPub(AP).
It can be considered as an add-on, but you will agree that AP has many more features, it can works exactly the way the web should work.
And it is important to understand that if you do create servers that have a different point of view, the network will be taken over by either one side or the other. Let's not give it away, let's not from bubbles.