I've never used Twitter either. Unless, you include clicking on links from nkstr posts to be using it. Also, I think it's a matter of ignorance, as well. Heavy centralized social media users may take a trip to nostr only to subconsciously refuse to acknowledge the realization that they don't need social media to be as big a part of their everyday lives as they imagined. It's sad, tbh. Nostr needs to have an abundance of clients in all markets if it wants to succeed.