What is the most important consideration when choosing collaboration partners on Bilibili, beyond audience size?

The most important consideration when choosing collaboration partners on Bilibili, beyond audience size, is audience overlap and shared content themes. While a large audience can be appealing, collaborating with a channel whose audience has little interest in your content niche will result in minimal cross-promotion benefits. A successful collaboration involves identifying partners whose audience has a demonstrated interest in similar topics or complementary content, maximizing the likelihood that viewers will cross-subscribe and engage with both channels. Shared content themes also ensure a natural and seamless integration between the two channels' content, making the collaboration feel authentic and relevant to viewers. This strategic alignment is far more valuable than simply partnering with a channel based on subscriber count alone.