One thing I’m not clear about is the impact my home instance has on me. I joined lemmy.world and am currently using the connect for lemmy app. I know when I sort by Local it will only show me posts from lemmy.world, but beyond that are there any things to keep in mind?
I have read that lemmy.world has been hit by DDoS attacks but I’ve never had any problem using connect for Lemmy during those times as far as I know.
The only way it matters is if/when it is defederated by/from other instances.
That being said, some may or may not be more reliable than others, but that’s a separate issue
That’s not the only way. Smaller instances will have very different All feeds because All is just an aggregate of your Instance-mates.