I'm not sure synchronous=off qualifies as incredibly dangerous. You can corrupt the database with synchronous=off, but only if you loss power or take an OS reb

I'm not sure synchronous=off qualifies as incredibly dangerous. You can corrupt the database with synchronous=off, but only if you loss power or take an OS reboot in the middle of a transaction. Even with synchronous=off, transactions are still ACID and the database is guaranteed to be intact following an application crash. It takes an OS crash or power failure to cause problems.