Hive has been the best platform for me over the years for engagement and creativity. Reward too but like your I don't post for that. I post for the sheer enjoyment of it.
I think posting daily is fine. After all, I used to! I sometimes get annoyed by the really low effort daily posts for the sake of it. You will know the ones.
Your running posts are a great example of how to add flavour to a regular post because you actually add content to yours!
Alas, I could never afford Croatia. I would love to go to another hivefest. Or at least one, I have only ever been to the vet first on t'other chain. Boo hiss, although it was a great experience