Justine here. Please contact your system administrator and let them know the restriction is in error. FAANG loves me since I was a employee of theirs for many years, and some workers from FAANG were even generous enough to sponsor me on GitHub today. Thanks guys! As for justine.lol, there isn't any user-submitted or untrusted content on this domain. What most likely happened is a virus scanner got unhappy with the Actually Portable Executable format, which is still very new.
One thing you can generally do to verify the authenticity of the binaries I publish, is go on VirusTotal and check to see if there's an upvote from "howishexeasier" since that's me. It's the closest thing to code signing that a multiplatform binary format allows, and honestly I think all platforms should use the service to check binaries.
That sounds like a problem for the FAANG, not for the author. (My old workplace used a third-party web filter that ended up blocking my own website. I sent a few requests over the years to unblock a few sites; as far as I recall, they all eventually got unblocked.)
I've once seen tarsnap.com blocked for being a "file hosting service". Technically correct, but it was funny that a service with only command-line interface can get blocked. Actually, it was not funny for me because I needed the scrypt documentation hosted from the same domain...
This probably needs more specifics to be acutely actionable, for example further details could turn up in the author's inbox from an anonymous (eg protonmail) address. Given that at the author's level of specialization the world shrinks somewhat it shouldn't be too hard to verify the information and dismiss duplicate messages/red herrings, and then proactively alert other employees facing the same filtering about what's going on.