TL;DR: The COVID Blog reports on people who have taken the vaccine and either died or experienced serious adverse effects. Paypal has permanently banned them from their service.

The website is attempting to track the data because the FDA, CDC, DOD, and WHO not only refuse to publicly track fatality rates and SAEs, but any health professional, outlet, or resource outside of VAERs attempting to do so gets shutdown or censored by Big Tech. Facebook in particular has been notorious for aggressively shutting down any and all groups related to people who have taken a COVID vaccine and experienced serious side effects: https://reclaimthenet.org/facebook-removes-covid-19-vaccine-victims-group/