So Onlyzaps, for a while I thought it was a Nostr-based Onlyfans-clone. I was wrong. (Although it still could be.)
Either way, I think likes are a good way to say, "hey, I like that." Or, "I agree," but maybe not "like it so much I part with sats that will one day be a dollar each."
Just because someone didn't like your thing THAT much (enoughto zap), it's cool not to get complete radio-silence. (It took me a while to break through Nostr. I kinda still am.) But does hitting the like absolve the person of 'duty' to provide value? IS THERE any duty to provide value to others? Of course not. It's just being nice. So whatever people feel like doing, it's up to them.
(Side note, I highly recommend Wallet Connect, now I don't have to open another app to zap. Also, if you pick and choose your zaps 'too much' (whats too much?, anyway) just lower the amount you zap.