I’m not sure what EXACTLY you’d be looking for from a search feature as I’m mostly a light user myself, but there’s a search option which will search the contents of all your notes. I can’t tell you how robust it is, but it does have exclusion (desiredTerm -excludeTerm) search at least, and there’s standard Find/Replace functionality once you’re in the specific note.
Sure, but the argument isn’t “should we ban work that is based on the study of past cultural creation” it’s “we should prevent computational/corporate exploitation of past cultural creation in order to protect the interests of humans.”