I wrote a plugin that hides replies and allows you to permanently hide jobs. [1] I'd like to update it so that hidden posts carry over between months, and perhaps to re-sort the posts based on post date.
I have since found that with over 800 posts each month positive sorting is not efficient enough. Around the same time I found a search plugin from another user, but I haven't used it. [2]
[1] https://chrome.google.com/webstore/detail/modwh/hefjlchphbeb... [2] https://chrome.google.com/webstore/detail/hn-whos-hiring-job...