Welcome. Yes, it seems like easter feature 😅

You can also check where the spam from small relay icon beside of notes/post

https://nostpic.com/media/2b67e480b7f99d2835684a8f7276d86edbe8e318ea55cf77ccfd559c5f24f645/690552132e5fa992ab3f00376b76f9f62f95e62f748f41afedd6a002c43f4958.webp