because every other instance does the same.
this comment is content, it’s now stored on the instance I share it with, and all the instances it federates to, along with my username and so forth.
the above is just a legalese explanation of how the fediverse works.
Maybe it‘s a legalese explanation of a problematic aspect of the fediverse though. When a commercial entity comes in that deals in people‘s data, which doesn‘t just store data on its servers, but creates a product out of the data. And it seems like it can do that here without you ever agreeing or even knowing about it.
Apart from the list of items being somewhat generic and IP address just being unobtainable as someone else pointed out, it’s just saying that they get data about users by means of the normal functioning of federation. It’s ok in the same way as the server that originally hosts this community we are posting to (lemmy.ml) necessarily getting user data from our “home” servers we are posting from (feddit.de, sopuli.xyz), is ok. This is how we want it to work.
