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Threads' New Terms & Conditions Affects the Fediverse
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this post was submitted on 01 Sep 2023
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Technology
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What a non-story. The username, profile picture, posts from profile, and post interactions are all required for displaying the content that the Thread's user has subscribed to. The IP address is required for connecting to the service to retrieve that content. Facebook doesn't get any more access to your data than necessary nor do they get any more access to your data than anybody else. This is just fear mongering.
But remember, they intend to monetize this information by building it into your ad profile.
Oh noes, someone is making money out there off of something I did that I can't actually make money off of myself.
I have no love for Facebook or any other big giant corporation, but IMO people have really become overly sensitive about this stuff. They think they can send me ads that are more relevant to me now that they've seen a few of my posts. That doesn't harm me at all, I don't see their ads regardless because I've got ad blockers up the wazoo.
Lemmy project set wild unrealistic expectations on GItHub project: 1) "high performance', maybe the Rust code but PostgreSQL logic is the ORM madness. 2) "full erase" while sending all your public comments and posts to ActivePub without agreement on concept of delete.
For sure. That seems to be the go to phrase for anything developed in Rust. By itself, Rust isn't any safer or faster than another similar language; it takes a good developer to make it work well.
Just because it's written in Rust doesn't make your app safe, or performant. Just like because your app is written in C, doesn't mean it's buggy and insecure.
Lemmy 0.18.4 listing posts, frequently via ORM Diesel:
That is with hand-optimized person_id = $1, which the Rust code does not do.
I cry just reading that...
See, I noticed this stuff reading through the Lemmy source code, but I assumed the authors just were on another level of database use than me. Is this actually just a mess? How exactly is it bad, beyond being opaque?
serous problems with scalability, it works fine if there is little data in the system.
Huh. I guess I'll have to learn a bit more.
This is effectively a binary blob to me lol
This doesn’t look like anything out of the ordinary in a real-world application to me. We have way more complex queries in our service, even though ours are hand crafted.
One thing we did notice though is that sometimes, it’s faster to just query the whole dataset and do the complex filtering in Rust. As soon as you hit the seq scan heuristic in PostgreSQL, there’s nothing to be gained from doing it in SQL.
It isn't the complexity that is the problem. It is the open-ended nature. It lacks any WHERE clause that specifies which posts to get. It just kicks off join after join without restricting what it is looking for. It relies on the "LIMIT 50" that Lemmy restricts post listings too. Which worked OK in March 2023 when Lemmy was over 4 years old and still had very tiny amounts of data in all these tables that it joins, but once even a modest amount of data got point in the open-ended nature of the WHERE clause kept making it slower and slower as more and more content.