message: ignore hashtags for keyword-less content warnings
diff: @@ -39,6 +39,10 @@ export function extractContentWarnings(input: string): ContentWarningResult | un
  return undefined;
  }
  + if (subject.startsWith('#')) {
  + return undefined;
  + }
  +
  // If the subject has spaces, it might not be useful
  if (subject.split(/\s/).length > 1) {
  return undefined;
  