I've had issues with lazy IO that caused awkward behaviour. Identifying the root cause was not trivial, and altogether, laziness gave me no benefit and caused m

I've had issues with lazy IO that caused awkward behaviour. Identifying the root cause was not trivial, and altogether, laziness gave me no benefit and caused me lots of harm. This is the most important point here: when laziness is useful very rarely but causes non-trivial trouble often, why on earth have it on by default? I'm sorry that I cannot remember the specifics of my problems, this project was done years ago.