Objects with a large number of subscribers should show something like:
Subscribers: epriestley, alincoln, htaft, gwashington, and 35 others
When a large subscriber list is edited, it should have a similar treatment:
epriestley removed subscribers: x, y, z, and 17 others
In the cases, clicking "N others" should pop a dialog showing all of the affected users.
Possibly we should do this for more/all edge relationships, but most are hard to do generically and rarely have long lists.