I only know how to do comments vs submissions in uBlock

     news.ycombinator.com##tr.athing.comtr:has(a.hnuser):has-text(/\bUsername\b/)

And then there are topics themselves

    # Filter some topics
    # top (title / url)
    news.ycombinator.com##tr.athing span.titleline > a:has-text(/(Elon|lockchain)/):upward(tr)
    # bottom (stats / comments)
    news.ycombinator.com##tr.athing span.titleline > a:has-text(/(Elon|lockchain)/):upward(tr) + *

But I'm sure it could be done in uBlock, guess I need to play around with it. This removes the subline which would indicate something is up but I need to encompass the two rows. It feels like there should be a class that spans the two rows but I am awful at this.

    news.ycombinator.com##tbody > tr#bigbox > td > table > tbody > tr:has-text(username)