@Gargron yeah I know :)

I posted it just to see what happens. Didn't quite expect that around 40 different instances will fetch it. Those probably are Pleroma instances since Pleroma doesn't do any JSON-LD stuff at all (https://socialhub.activitypub.rocks/t/making-sense-of-rsasignature2017/347/6) and re-fetching everything you receive is one way around LD-signatures.

Now I need to support boosts in order to see all those cat pictures on my own instance 🐱