x.0 being wobbly and somewhat risky to use is not something specific to
proprietary software. It's not a sign of evil, either: perhaps of
excessive optimism, at best. A sizeable number of the things I've designed
have subsequently had to drag around kludges to allow people who were
relying on (what were in retrospect) horrible design errors in the first
version to not get burnt when I fixed those errors...
I for one am not smart enough to get everything right first time. I
suspect nobody is. Not even Don Knuth: TeX83 was quite a change from what