. . . hell will freeze over before I drag my sorry ass
outside in subzero weather to crap on the compost heap. Or even crap
in a bucket that can be emptied on the pile.
I don't know anyone who does it the first way. There is a third way. A
low-tech version of a Clivus Multrum. Make a luxurious throne at the
most comfortable and health-sensitive height, facing in the direction
you prefer. Good light and a bookshelf. Put this in a place where
there can be two good-sized chambers below floor level. Use lots of
sawdust. When chamber one is of a good size, swing the deflector to
send products to chamber two. When chamber two is of appropriate size,
empty chamber one from the outside.
Seems to me that a good way to use humanure that might be of
questionable finish would be to scoop out a garden bed, spread the
humanure, put the soil back on top, then let soil organisms work on it
for a year.