Excellent question, @thkru
I hope this this page provides some clarity.
I can’t phrase it better than @Brian.Israel did there, but here’s my oversimplified take…
The act of cataloging debris on its own won’t necessarily reduce future debris. But we’re betting that by having many eyes on the objects orbiting Earth (active satellites and debris), we can form an independent, unbiased, transparent source of SSA data. And by having a data source that everyone can trust to be open and accurate, in-orbit behavior can be more effectively regulated, thus raising costs for unsustainable operations.
In other words, TruSat was founded on the hypothesis that decentralizing the data source will create trusted data, which will strengthen accountability, which will financially incentive more sustainable operations, which will reduce the risk of new space debris.
And as a side note on the parties making observations… while the language currently on TruSat.org was written to speak to amateurs and citizen scientist, the long-term vision is for the system to be permissionless, where any entity can dump data in. It could be a single stargazer with binoculars, or a well-funded institution with sophisticated equipment. Their impact on the record will be weighted according to various confidence factors.