Hey, guess what? About half of the stuff you guys upload are pretty much just fbx and mat files, no real Unity stuff going on there. So, we thought, why not make things a bit easier for you? We're now allowing a wider variety of uploads.
Don't worry, we're still giving every file - even those outside of UnityPackage - a good old scan to keep things safe.
And here's some fun news: I might start automatically converting zip files to unitypackages and vice versa later this week. Let's make sure everyone can share and enjoy assets without a hitch, right?
Check out these links for a visual idea:
https://i.imgur.com/N5bBy8i.png and
https://i.imgur.com/mXN9kwy.png