you WOULD type a script

script/nsfw-warning.ts

@@ -0,0 +1,28 @@
+const nsfwOk = 'nsfw-ok';
+
+function alreadyYes() {
+  return localStorage.getItem(nsfwOk) !== undefined;
+}
+
+function dismiss() {
+  let dialog = document.getElementById('nsfw-dialog')!;
+  dialog.parentElement?.removeChild(dialog);
+}
+
+function yes() {
+  localStorage.setItem(nsfwOk, '1');
+  dismiss();
+}
+
+function setup() {
+  if (alreadyYes()) {
+    dismiss();
+  } else {
+    document.getElementById('nsfw-yes')!.onclick = yes;
+    // nsfw-no is a normal link
+  }
+}
+
+document.addEventListener('DOMContentLoaded', setup);
+
+export {};