Even if the election was rigged against the Democrats, it's not like it wasn't completely deserved. You don't get to oppose attempts to prevent election fraud before the election and then complain about election fraud afterwards.
I clicked through the link. Where are the examples of HN democrats "lobbying against secured voting machines and paper ballots"? I see HN users decrying Trump's vague self-serving complaints, but nothing against secure voting. Just because I hate sloppy programmers who blindly say that a program is probably going to crash because that's what programs "just do" but it doesn't mean I'm against testing or error handling.
> I see HN users decrying Trump's vague self-serving complaints
By responding to Trump's accusations by saying that the election wasn't rigged or hackable, Democrats undermined all of the folks who were actually trying to fix these issues. It doesn't matter if Trump said the election was rigged 'for the wrong reasons' or whatever, saying that the election wasn't hackable was absolutely the worst possible response.
Yes, it's alright for people after an election to make an informed assertion that things look irregular and should be double checked.
Yes, it's alright to have a recount even if we think and hope it will change or reveal nothing, especially since it's funded by private donations.
These things are in no way incompatible.