I don't see how that affects the comments you're replying to in any meaningful way. They only mentioned a particular election to establish a timeline.
> Around here
Voting varies wildly between parts of the US too.
Because many countries won’t have had a meaningful difference in election systems in that window?
It's not like this is inherently bad or anything like that, it's just a remainder that sometimes the inhomogeneous composition of the HN commenters should be considered. And as you pointed out, that's also the case inside the US.
Also, others used the opportunity to state how their country/state uses (no) computers for voting. So there seems to be some meaning to it.
> the second is more along "we do it like that, so all the others probably do it like that as well"
2016 is quite recent for a first encounter anyway, so I don't see it as "we do it like that", just an anecdote that it's spreading. No "others probably do it like that".