[rootusrootus]

The original point was that you become reliant on a public service, probably run by volunteers, for something halfway critical to your operation. Doing it yourself is easy and then you control the reliability, not someone else.

[jjwiseman]

You're just saying things that don't have basis in reality.

It's not something halfway critical to the operation–why would the FAA allow that? ADS-B Exchange is not run by volunteers–it's run by employees of JETNET LLC, an aviation intelligence company. Doing it yourself almost certainly gives you less information–you're not part of a global network of receivers. It almost certainly gives you less reliability–receivers in the big networks typically have a fair amount of overlap which gives redundancy your single receiver doesn't have.

It's also not FAA approved!