The "zst" extension is used for files that are compressed with the ZSTD algorithm, usually you see them as ".tar.zst" files in the *nix world - tl;dr, they're Linux ZIP files.
Reddit staff wants to bring down stuff like piracy subs, they want you to break the rules en masse so they can shut it down. Sure we can say "oh boo hoo we have Lemmy" but how many people don't? How many people won't bother with Lemmy? How many don't know about it? How many people will DL from Steamunlocked? How many will torrent from the Bay using Bitlord? The Megatgread is still crucial info that needs to be accessible to as many people as possible
If you read the Megathread piracy will be second nature but if you don't and then get malware after malware, at some point you'll say "fuck it" and stop, which will deter a lot of people
Now that most of r/Piracy seems to be on the fediverse now, maybe reddit's advertisers would like to know that they endorse digital piracy. Might fuck up their IPO.
There's an awful lot of TERRBILE 'information' on there though. What we don't need are thousands of posts from idiots who don't know what a torrent is, what a seeder is, what ddl is, why they receieved a warning notice, or a those idiotic 'why I pirate' shitposts.
"Why I pirate" was so annoying. It was like a lamp to the edgy moths who loved to bullshit how they're thieves and criminals and aren't afraid to admit it. Homie you're copying somebody else's copy of somebody else's copy of somebody else's copy of a bunch of files, you aren't slicing Spanish sailors' throats and plundering sugar, rum, food and drinking water from merchants and trading vessels
Should be fine up until the point where lemmy takes off. Then the meme/shit-posts begin. Reddit was pretty on topic back in the day when it was smaller.