If someone is interested in watching the articles from a category
this is a painfull job.
Solutions: alternatively to the actual display of a category it
should be possible
a) to show the newest changes of the articles of a category in a
similar way manner as "My contributions", "My watchlist"; the
newest changes should be displayed first;
b) to limit the content of (some) special pages (as categories,
users, all sort of "... pages" and so on) with a "Startig from"
and "Until input" mask; this would save both database resources
and user time as well;