increasingly, many relays do not allow any old scraper to connect. just like japan. there is no reason to believe this trend will not continue.
when google invented web crawling did we look at its # of websites and say, these are ALL the sites on the internet? no. this is how nostr functions as well, an internet full of unknown websites.
try an experiment, post an image or something that you can see the stats for. or see how many times your nip05 has been verified (someone scrolling a feed past your posts) youd probably be blown away at 'the stats'.