Zero for me💜 TLDR; report any obvious spam even if it takes an extra 30-60 sec. I was quite adamant about 2-3 weeks ago to manually mute/report/block any npub that I could tell was spam -took about a week Also removing one relay that helped of course - can't remember which, obvious thing to check, do and it worked well I have absolute zero spam PS I often report/block/mute clear spam in others' note replies. This helped as well #HelpYourFellowNostrich