Well, well, well. The public JSON formatter sites your developers paste production data into have been quietly publishing every paste for about seven years. Naturally, we read all seven years of it.
200,000 documents. Cloud keys, SSH keys, payment API keys, whole tax returns with SSNs, people's full identities, bank balances. Nobody hacked anything. People pasted it in to make it look tidy, as you do.
Full writeup below. Yes, it's as bad as it sounds.