The creators of SponsorBlock did it again, now we can crowdsource better titles and thumbnails as well. I just tried it with LinusTechTips who is a worst offender when it comes to clickbait and its really great.
Compare without DeArrow
and with the extension
I assume that in the short term transcoding is also going to become an issue. Most fedi servers are being hosted on cloud providers like Hetzner, DO, Linode, etc. who do not have any kind of encoding hardware, and modern codecs like VP9 or god forbid AV1 are horribly slow to encode without HW acceleration.
I know there are several platforms that do offer it (Amazon and Google do AFAIK) but those can still get pretty expensive, and there is a sizeable chunk of people here who may not want their content to reach Amazon or Google.