Hexbear's federation should be used to try to educate people and help them on their journey to leftism, not dunking on them.
I was against Federation but am now trying to use it for something a little worthwhile. And so should you. Spamming poopballs like idiots will just make everyone defederate with our instance.
Try to engage in good conversations, I've seen multiple cases of people just shooing away other people because they're from another instance but tried to engage in a conversation here.
I think those are mainly the exception. Most good-faith interactions I see look like this: