alt Hacker NewsIt's not like older accounts are necessarily any better.
If you look at the leader board (https://news.ycombinator.com/leaders), you'll find a few old accounts that pretty much do nothing but farm links, posting sometimes dozens of times a day, with a very low percentage of comments. Their high "score" isn't an indicator of quality; they just spam enough that a few get some good upvotes, but most of their submissions are low quality.
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This has long been my biggest issue, much bigger than new accounts spamming slop. There are accounts with 10000x karma that do little more than feed links from the NY Times and similar publications, regardless of their relevance or value.
Each one gets 4-5 karma, a few crack double digits. Post 10 or 20 a day over a year or two and they're five figures. Pure farming.
The solution is for the users to be able to mute/hide accounts. It won't matter if an account has 10k points, once you mute it, you won't see what it posts.