The irony is that I'm telling about open-source software flight simulators[0] and comparing them to YSFlight (which is partially open-source) from point of software.

Where 'meheleventyone' droped IL2:Sturmovik in actual thread just as "alternative game to play" — there is nothing about its software development described here and IL2:Sturmovik is not in whole or even in part open-source app.[1]

Lets not manipulate in the middle here.

[0] https://news.ycombinator.com/item?id=30299850#30302334

[1] https://news.ycombinator.com/item?id=30299850#30301295