this post was submitted on 30 Jul 2023
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Fair. It's not too hard, but most lemmy UIs make it a bit harder than it needs to be because they want to be a fancy JavaScript-ridden mess of html tags.
On old.lemmy.world it is supremely easy, you just use the element picker tool of uBlock to select all posts, add the 'magic' command
:contains(reddit)to filter out the word you don't want (in this case reddit), and you've got your filter. This would result inold.lemmy.world##.post:contains(reddit).On lemmy.world it is trickier because it is the kind of HTML no sane person would write. Doing the above you end up with
lemmy.world##div.mt-2.post-listing:contains(reddit)which is messy, and misses a line that is used to divide the posts. With some manual tuning you can first simplify the first part to##.post-listing:contains(reddit)and then add:xpath(.|following::hr[1])to get rid of the annoying line. This results in##.post-listing:contains(reddit):xpath(.|following::hr[1]).Oh is it literally just css selectors, but with a slightly different syntax? Fuck me, I never looked into it and assumed it was nonsense.
The extra syntax is just to add some features that aren't in CSS. Not quite sure where this came from, I think it's from the Adblock Plus era, but Gorhill perfected it for uBlock origin, which makes it a very powerful tool.
It's not limited to just hiding the elements either, if you want you can simply restyle them (I've used this to redact sports results until I hovered over them).