I’m not sure I’m completely following on what are bad/fake zaps specifically, but when I was thinking about zaps all I was able to see is that when Alice zaps Bob it is impossible to figure out Bob would’t send those bitcoins back to Alice (and that Alice != Bob) in order to push a note higher in some algo. And it can be completely free for them if they have direct lightning channel open . And those zaps are 100% real.

The only thing I can see as possible to build on trust is something like “ok, Jack and Michael are good guys so zaps they receive are real and we can see which their posts perform better”