Check out this article by Jennifer Schweppe, Amanda Haynes and Emma Marie MacIntosh published in the European Journal on Criminal Policy and Research.
The artice explains very clearly why collecting third-party reporting data is important for civil society organisations and communities, The reasons include:
The importance of collecting such data is paramount also in jurisdictions where hate crime is not acknowledged in the legislation, because it promotes legislation change by giving visibility to the problem.
The article also highlights that victim support is a key natural extension of data collection among community organisations, and community organisations collecting data should provide support to victims otherwise they risk to frustrate expectations and leave the burden of hate to victims only.