I’d guess the one which seems that it will last more, since you can subscribe to communities of any other instance. You’ll only see a difference if you browse only local posts.
In my case I chose infosec.pub because I want to browse it locally if I want, but my subscribed communities include memes and webcomics for some light time wasters.
Duh, that’s exactly how pacific resistance works: you intentionally lose something to make a point.
If everyone refused to buy from scalpers, you wouldn’t even able to refuse, because scalpers wouldn’t exist in the first place.