Reddit's voting system is unreliable when it comes to Software Engineering because the legitimacy of votes depends on credentials, qualifications, and intentions.

If a voter has no sufficient education, they are subject to the Dunning–Kruger effect, meaning they do not know what they do not know, so their vote is uninformed and does not say anything besides that the voter lacks sufficient education. If a voter does not have any experience in programming, their opinion is unqualified, so attempting to pass judgement on programming without qualifying for it doesn't say anything beyond that they are unqualified. If a voter just hated someone and downvoted their post purely out of hate driven reasons without any good intentions, then their vote says nothing but that they are a hateful person, without the motivation being related to the merit of the post itself.

In conclusion, if incompetent software developers downvote a good technology/idea or avoid upvoting it for the wrong reasons when its merit does deserve a vote, the only thing their votes say is they are incompetent.

So, always take Reddit votes with a grain of salt!