Interesting, I think zaps will decline in use for general social interaction. I think I can already see that apart from attempts to make only zaps happen. Zaps will allow nostr to become a bit of a town square with zaps replacing coins you might have given a begger or busker prepaid for goods and services, but hanging with friends won't typically involve monetary exchange.

I wonder if the ability to zap will improve the honesty of influencers or media. Currently media outlets get paid in aggregate and only have to produce enough good content to get people to buy a subscription. The rest they can make up with content that others pay to promote. The ability to pay for each piece of content could change their incentive structure.