Maybe I’m a smooth brain - but I always thought private trackers were kept private/exclusive as a way of promoting seeding - the exclusivity of private trackers lowers risk/fear of seeding, so people seed, files are kept alive. - the ratios are a stick to enforce the rules and boot leechers. Centralizing seed logs with private trackers always gave me the creeps though.
Honestly, it sounds like there’s essentially no risk of seeding on I2P. Wouldn’t more people be willing to seed in general? And wouldn’t that in turn obviate the need for private trackers?
Alas, perhaps my smooth brain brings naivety along with it.