What kind of spam you see?
Discussion
You can get rid of that one just by adding randomuser.me to your muted words, since all of those use that same as their profile image source.
i have no idea how to add that on nostr:npub1n0stur7q092gyverzc2wfc00e8egkrdnnqq3alhv7p072u89m5es5mk6h0
Not all clients support muting particular words, so the "just do this simple thing," isn't always an option.