Edit: obligatory explanation (thanks mods for squaring me away)…
What you see via the UI isn’t “all that exists”. Unlike Reddit, where everything is a black box, there are a lot more eyeballs who can see “under the hood”. Any instance admin, proper or rogue, gets a ton of information that users won’t normally see. The attached example demonstrates that while users will only see upvote/downvote tallies, admins can see who actually performed those actions.
Edit: To clarify, not just YOUR instance admin gets this info. This is ANY instance admin across the Fediverse.
To illustrate op’s point I’m going to spin up an instance, federate with everyone, and not tell anyone what that instance is.
Then I’m going to feed all that data into my new website, called Open Lemmy Stats, where anyone can query the user data ive accumulated. The homepage will be ripe with insights, leaderboards and all kinds of data on prolific users.
Additionally, I’ll display a snapshot/profile of a random user by feeding that users data to GPT4 to make inferences about the user’s political affiliations and display the results.
Worst of all, I’m not going to out my instance for everyone to know it as the one to defederate. In fact I’m spinning up a few instances that will host innocuous communities that I plan to mod and support to give my instances cover for their true purpose: redundant fediverse datastreams for my site, Open Lemmy Stats.
I’ll also have a store where anyone can buy my collected fediverse data for a handsome sum.
Just kidding I’m not doing any of this. But someone absolutely will or already is.
You know, I came in here with the mindset that the topic of discussion here isn’t a bad thing; I’m largely pro information-should-be-open-and-available. But you’ve argued a very solid point, and I’ve changed my mind on the issue. I appreciate you sharing this perspective!
They will know the user but not the person in real life. Even if you know that my user is more conservative on some points or more liberal on others, how can you use that for nefarious action ? Unless you know where I live and who I am, the data is useless.
People need to be aware that sharing your personal information on the internet is never a good idea.
It’s very difficult to both A) have meaningful conversations in a public space, and B) conceal your identity from a dedicated adversary. Once a person has a long post history, it’s likely that an observer could narrow down their identity to a very small group, if not a single person. Every post you make reveals something.
Even if you don’t ever explicitly state it, your age range and gender can likely be guessed with high probability by your writing style and/or little tidbits of info you leak without thinking about it. Same for political leanings. You might casually mention the brand of car you drive, or your favorite foods, or just reference something you experienced as a child that is not universal. All of these things leak information, and while each one seems insignificant, in aggregate they can tell a detailed story. Just knowing that you’re a Canadian who speaks both French and English eliminates about 99.8% of the world’s population as possibilities.
Back on Reddit I used to create fresh accounts all the time, but then I’d go and join the same subs, post with the same writing style, and generally express the same worldview. If anybody cared, had a good grasp of statistics, bothered to collect the data, and put in a stupid amount of time to it, they could likely match all of my accounts together. I was never too worried about this because…well I just didn’t care. But I did have a cyberstalker at one point and it made me think.
I wouldn’t be shocked if someone could match me to one or more of my Reddit accounts just from this one comment, tbh. I’m leaking information here like a sieve! Not many people have the skills to do that, and the few who do are unlikely to give a rat’s ass about me. HOWEVER, as AI becomes more advanced, anyone with computer literacy will be able to do analysis in minutes that might currently take an expert days or weeks.
I’m almost willing to bet that big tech companies are already doing this. They got the motive and the means. No doubt Meta or Google have dedicated some of their servers to mining our Lemmy data in this way.
With only around 100k users and most people using anonymous usernames that cannot be connected to their identity it would hardly be worth the effort, time or money.