Alex Riesen [off-list ref] writes:
It is off(0) by default, to avoid scaring people unless they asked to.
I do not think this is off by default, by the way. "off by default" means
that you would not waste extra cycles to compute the list of suggestions.
I am not suggesting that it should be "off" by default in that sense,
though. I am just pointing out that it is not described correctly.
I also noticed that this does not seem to pay attention to mistyped
aliases. Is it by design, oversight, or lazyness?