Yes, everyone should be careful downloading files from a rando on the internet. But at the same time, most people just want to get the files and don’t want or know how to deal with the source code. And everything is on archive.org but not everyone knows about it, and they probably don’t want to wait for a new emulator when they know the old one works. I’m not saying that you should trust me, you don’t know me, I don’t know you, so as you said, it’s best to be careful anyway. Btw, I’ve read that Yuzu collected telemetry, and now that Nintendo owns the site, it’s best to set up a firewall and block Yuzu from accessing the internet so be safe.