The public relay that i only use are nostr.mom (more strict spam filter than nos.lol ) and nos.lol . They have some spam filter to reduce the number of spam, less spam than other public relay.

Why i still using public relay like them? Well, i want to interact with as much as possible people using nostr (but still less spam). Most new users or people that i don't follow yet comes from those relay. 😅

If i limit myself too much on paid relay only, then probably i can't find other user who doesn't use paid relay (including you). Till now, i can find different interesting people from Chinese, Japanese, Arabs, Latino, Thai, and many other because I'm still using those relays :)