I don't think I want to see Community Challenges back-to-back-to-back in an endless string.
For one, the number of Challenge ideas is finite so an endless stream of community challenges would exhaust that supply and we'd rapidly see the repeating pattern.
Secondly, many of the challenges demand that you play a certain way, certain mode, or with certain characters and for many an endless stream of challenges would seem like someone was dictating their play style.
Thirdly, with a gap between them Community Challenges are more easily viewed as the special events they are. Placed back to back in an endless repeating stream and people would quickly get bored of them and participation would drop. I've been playing for months and I barely acknowledge the Daily Quests any more and I don't think the developers intend for the Challenges to become just another daily thing which people quickly grow familiar with and ultimately ignore.
