uBlock Filter for HN Ads

     news.ycombinator.com##:xpath(//td[contains(@class,"subtext")]):not(:has-text(/\b(comment|comments|discuss)\b/i)):xpath(.. | ../following-sibling::tr[1] | ../preceding-sibling::tr[1]):style(display: none)

HN ads, AFAIK, are sponsored things that look like posts on the front page, but don't allow comments. Hence this filter rule targets "posts lacking a comments section".