Supposing that i have an Event content type which has "Start date" (mandatory) and "End date" (optional)
Some events occur only on one day, so they don't have the "End date" field set.
Supposing now that i want to get all events that will occur from today (included the ones which have already begun).
The only way to do this currently is to set content digest service with "End date" = "Future" that means the contributor will have to set the "End date" for all the events, included the ones which occur on one day => impact on skin to display event with "Start date" = "End date"