By committing to releasing content regularly, you also dramatically increase your chances of producing a hit. 5 Second Films have produced so many short films and told so many jokes that the handful of hits they’ve had propelled the group into web virility.
If you cannot produce enough content to release daily, then commit to releasing content “regularly” – and publicly define the recurring time frame through which they should expect new content (weekly, monthly, every third Tuesday, etc.). At least some level of audience expectation makes a huge difference for audience retention.
Random splashes are risky and expensive to promote. Arbitrary releases rarely build traction. Do not bet on it. Consider curating an audience and regular programming instead.