Grouping topics

Inspired by a series of topics about memcached , and many other "serial" topics.

The authors of the topics sometimes want to combine several topics into a group, and, when the nth topic is written, (n + 1) -th is not yet. Moreover, the author usually adds links to previous topics, in each regular. In principle, this is justified if I saw a post on the main page and want to track a series of publications from the beginning. But what if I found the first post, and the author was too lazy to provide links to subsequent publications in each of the previous ones, what should I do? Yes, I see the block "similar publications" on the right side of the page. But in this block there are “extra” publications that do not belong to this group, and perhaps there are no related ones (if suddenly Habr did not consider the publications to be similar, or there are too many of them).

It would be very nice to add a grouping of topics, for example, through some special tags (& topics about memeshd). This, by the way, would solve the problem of old topics, which recently also rose.