You asked
How should tags be integrated into Lemmy?
Which is a generic question that goes beyond the scope of one change, so I assume you also wanted to shore up probable future changes, all of which built on top of the first change. Forseeing problems in advance can prevent problems from propagating down the chain like this, so my contribution here is to reiterate the mistakes Ive seen other failed social networks make. That is, if spam bots have a way to output sludge faster than genuine content can be created, people will leave. I dont know lemmys specifics and its not my job to learn that, and this is not a code review. I do expect defederation to add some unknown complexity, so literally all i am asking is to just have a strategy for the final implementation and not handwave stuff as someone elses problem or take moderators for granted like reddit did.
Beds really changed the whole game.
Building a base didn't just mean a place to put your chests, it also had to be a place worth spending the whole night in. I cared a lot about making the interior a nice place to be. And the exterior of the base had to be a good fort too because you couldnt skip all the monster spawns at night.
Back then I took minecraft to be like a fort building game. Explore by day and craft by night. The first night I spent huddled in a small dark grave i dug for myself in a wall. It taught me that a good base was important.
I think beds were added in the halloween update if i remember right. I was blown away how they skipped monster spawning. That's when I felt the game changed direction the hardest, because you no longer needed a base to survive.