Use a bot to monitor comments and an SCM like git to detect potentially suspicious differences. Like a comment change that is not marked as user edited. Or a comment change that seems to shift the original meaning significantly.
You can't make a logical case on a liberal site like HN for anything. It's not allowed by the liberal elitists. Liberal here defined not as true liberal but progressive (destructionist) liberal.
Legal votes? Not likely and also not likely she got the plural vote. Yes, even if 100% of the difference were legal (they aren't) it's not a majority, it's a plurality.
Until bandwidth pricing is fixed rather than nickel and dimeing us to death; a lot of us will choose fixed pricing alternatives to AWS, GCP and Rackspace.
Bandwidth pricing, bandwidth pricing, bandwidth pricing for all the big cloud providers that charge by the bit rather than a fixed price; all of them are too expensive.