As part of the Reporting API, Deprecation Reports can be enabled with a single line of code or config on your website.
If visitors to your site are seeing their browser crash, perhaps there is something you can do to resolve it.
There's possibly nothing worse for a user than the browser or tab crashing when visiting a site.
If this is reliably happening on your site, and you're receiving a large volume of these reports, it indicates a big problem for your users.
Alongside deploying DMARC, you may like to further improve the security of your emails.