That's a really interesting system! I can imagine it being very convenient writing comments & other making other interactions on your website since that's probably where you would be reading, so you wouldn't have to go to your own server in order to make an interaction.
if you login with IndieAuth and you have a Micropub endpoint in your server, it will ask you for permission to post the reactions to your server
How long does permission for these reactions last before re-authentication is necessary? Does your blog still have Micropub posting access while someone using this feature is not using your website?
Comment to: https://robida.net/entries/2026/01/24/own-your-likes-and-replies