[mediaqueries-5] Restore text on concerns on prefers-reduced-data and privacy

Author: frivoal

mediaqueries-5/Overview.bs

@@ -3095,6 +3095,9 @@ Detecting the desire for light or dark color schemes: the 'prefers-color-scheme'
 <h3 id="prefers-reduced-data">
 Detecting the desire for reduced data usage when loading a page: the 'prefers-reduced-data' feature</h3>
 
+	Issue(10076): This feature may be an undesired source of fingerprinting,
+	with a bias towards low income with limited data.
+
 	<pre class='descdef mq'>
 	Name: prefers-reduced-data
 	Value: no-preference | reduce
@@ -3388,6 +3391,10 @@ Appendix B: Privacy and Security Considerations</h2>
 	exploit the fact that an application is being displayed in fullscreen
 	to mimic the user interface of another application.
 
+	The 'prefers-reduced-data' media feature
+	may be an undesired source of fingerprinting,
+	with a bias towards low income with limited data.
+
 </div>
 
 <h2 id="changes" class="no-num">