Hey #forkiverse people, here is something not obvious to think about as you start interacting. Everyone on the #fediverse can set the controls about auto-deleting their content, including you. So consider how long you want it to stick around, but also realize that **anything** you see might be gone later. If there is a link you want to refer to, capture it in something - #Notion or #Obsdian or #Karakeep or just a text file. It will save you heartbreak trying to find that really cool thing you don't quite remember.
I made the decision to autodelete my posts. When I was cleaning out my Twitter account it was after the automated tools quit working so I ended up deleting them one by one over the course of a month. I saw an embarrassing number of them that were some variation of "welp, time for lunch" in the early days of that platform. I made the decision for myself that this is a platform of transient content of transient value. If I write something of ongoing value, it should be elsewhere and linked from here. My personal blog is a great start but could be anything.
The key here is own your stuff, control your own stuff, set up your preferences intentionally (going through all the settings one by one won't hurt) and most of all HAVE FUN!!!