alt Hacker NewsJepsen or GTFO.
These days there's little chance for a new DB to build its community using network effect. If you want this to catch on, switch to manually grinding community building ASAP gold plating the experience for a specific niche (AI can guide your priorities but will hinder your comms). Otherwise, have fun building!
I mean if it's actually just another Postgres, you don't have to worry about network effects as much because anyone could use it in place of Postgres. But sure, the more people you know using this, the safer it would feel to use it