Su Huai's tactic has a specific term in later generations, called "general pool distribution."
It might be a bit difficult to understand directly, but the subordinate operation "cross-industry traffic attraction," often referred to as "cross-promotion," should be familiar to frequent netizens.
For example, the collaboration between Tong Jincheng and Hua Xiaolong on sketches is a typical case of cross-industry traffic attraction.
Their fans have very little overlap, and by driving traffic to each other, heating up the video, and expanding their individual influence, they're exploring a strategy for handling traffic.
Another example is the "Absolutely Not Substitutable" series co-starred by Zhang Yuqi and Zhang Baiqiao, which catapulted Zhang Yuqi's average video views from tens of thousands to millions overnight, crossing not just boundaries but entire tracks, never to return on the abstract path.