May I suggest a mailing list specifically for universe content discussion to support the opening of the "editorial policy" so as to adopt a "social model", rather than an "anarchic model". The server could post to the mailinglist when it receives updates and users could post with feedback.
The posts could be flagged with the universe to which it applies in order to support appropriate filtering.
I have discovered that Universes do not appear to support Monticello dependencies. This means that packages such as 'Magma Server' and variants are not likely to work out of the box.
TimeZoneDatabase is not (as yet) compatible with 3.9 nor 3.10 since It overrides DateAndTime fromSeconds: to return a DateAndTime instance. Users of the subclass TimeStamp fromSeconds: are expecting a TimeStamp instance.
Keith
It is very important to make it easier for people to give feedback on problems so that they can be fixed. Lex, you ought to try things like thia!
-Ralph