+What sucks about public-inbox
+-----------------------------
+
+* Lack of push notification. On the other hand, feeds seem popular.
+
+* some (mostly GUI) mail clients cannot set In-Reply-To headers
+ properly without the original message.
+
+* marketing - as it should: <https://public-inbox.org/marketing.txt>
+
+Scalability notes
+-----------------
+
+See the public-inbox-v2-format(5) manpage for all the scalability
+problems solved.
+