Unfortunately, most of klal yisroel won’t be learning torah tonight, or on any night for that matter. Instead of worrying who does or doesn’t have a minhag to learn or not learn and the reasons for doing so, why don’t we all get together and come up with ways to make torah accessible to the vast majority of jews who were never exposed to it. That would be the true way to be rid of whatever tumah may or may not descend on the world on nittal nacht.
What does the word “nittal” mean? Is it hebrew, yiddish, aramaic?