It's fine, you may be triggered by keywords, but you're not limited to them. I'd be interested in learning about your search scope, or whether you limit yourself to Nostr posts on the relays you follow.

I think the balance point between ease of use and security is a market based phenomenon, with the answer being different for each individual based on a given point in time. When I want to buy something with Spark, I'm not going to want to waste time fighting with logins, npubs or keys, I just want to pay for the good or service and move on with my day. So it will very much depend on the user interface. I think it makes sense to have most of our capital secured in self-custody, but flow between self-custody and custodial needs to be smooth enough to keep our active wallets filled so we can be actors in the market, not just observers.