Cloudhiker is pretty healthy as a StumbleUpon revival. I've found lots of great personal blogs and sites across a lot of categories through it. https://cloudhiker.net/
Google had a tailored fair use argument because they never made more than snippets public and searchable. It was also prior to Hachette that controlled lending with one-to-one digital copies for every physical copy was a status quo that publishers largely accepted, which IA deliberately tried to upset with the National "Emergency" Library.
I think it's worth fighting back on copyright as a broken institution, and it should be part of the IA's mission, but you have to be responsible on your approach if you're also going to posture as an archival library with stability of information and access. I understand Kahle might lament losing some of the hacker ethos, but the IA is too important to run up against extremes like this without an existential threat.
Stick figures run through a lot of amateur digital animation, for probably obvious reasons. Pivot reigned on a lot of early YouTube and the stubby stick figure style ran through a lot of Flipnote Hatena. I'm not sure if it's simply that standards for amateur digital content have evolved, or if we have lost the character of small platforms like SFDT and Flipnote, but I do find stick figures absent today on the large platforms we've all herded towards. A lot of what I see is definitely buoyed by Flipnote diehards.
This exact arbitrage, performed by Doordash, was exploited.
Some of the major hosted feed readers (Inoreader, Feedly, Feedbin) include subscriber count in their user agent. I usually run a filter on requests to the feed links in my access logs to get an idea of how they're changing. Anecdotally, my subcriber count reaches into triple digits with only those counts, but I've never gotten email from readers and generally only get feedback promoting new posts on socials. The counts are about as nebulous as follower counts, which is to say most people probably subscribe/follow and forget.