Make old topics that get bumped somehow visually distinct
As suggested/discussed here:
https://tildes.net/~tildes.official/16g/daily_tildes_discussion_a_group_is_its_own_worst_enemy#comment-82fe
One simple way to do this would be to change the color of the date on the front/group pages for older topics, just the draw attention to it.
Edited by cfabbro