My guess is they want audience statistics first, which is more complicated to get on a decentralized platform. Also, without an algorithm to play/pay to, they have to do the work of building their audience which requires consistent content that other folks find valuable and that takes time …. Time they could use gaining thousands of followers on centralized social media.

Check out nostr:npub1kjehzhkadcmt9wxu34ftf65gpplwh2rsl8p6fa03266evjrtpm9qg24x4r - he’s running advertising experiments on Nostr.

As for connecting, try looking at hashtags of your interests… #art #photography #permaculture etc.

To get wider reach for your questions (about Nostr or anything), use the hashtag #asknostr

Good luck!