Ah yes, the "extended Berkeley Packet Filter".
Wikipedia:

eBPF is a technology that can run programs in a privileged context such as the operating system kernel.

Phoronix:

Hornet uses a similar signature verification scheme similar to that of kernel modules. A pkcs#7 signature is appended to the end of an executable file. During an invocation of bpf_prog_load, the signature is fetched from the current task's executable file. That signature is used to verify the integrity of the bpf instructions and maps which where passed into the kernel. Additionally, Hornet implicitly trusts any programs which where loaded from inside kernel rather than userspace, which allows BPF_PRELOAD programs along with outputs for BPF_SYSCALL programs to run.

So this is to make kernel-level instructions from userspace (something that's already happening) more secure.

The thread linked by the OP is Jarkko Sakkinen (kernel maintainer) seemingly saying "show your work, your patch is full of nonsense" in a patch submitted for review to the Linux kernel.
Edit: the OP has edited the link, it used to point to this comment in the mailing list chain.

Rust just keeps telling me "you didn't actually learn how references work" over and over

Since I had it handy, here's the source meme for the uninitiated:

Come on, somebody's got to link that video of the cameraman feeding the actors donuts

The answer is in the question.

Ooh, world building.
I have wondered about True's reputation. People tend to be pretty bold around him, but the man in the bottom panel seems to have a very good idea of what's coming his way, and where True's opinions fall.

Step one: use Dendrite instead.
Step two: come back and help me set up my Dendrite instance, it's definitely not easier.

I feel a sense of ownership over my OS. I tinker, I experiment, I break things and sometimes I fix them.
I still get mad, but it's our problem. We got here together and I know that we can do better.
Windows feels like renting. The landlord only shows up when I'm not ready, fixes stuff that wasn't broken, doesn't fix any of the things that I need fixed, keeps raising the rent and installing hidden cameras. If I want to fix anything, it costs way more, is way harder because the landlord won't tell me where anything is, gets un-fixed every time the landlord visits, and after all that it's just fixing someone else's house.

Just install Linux

"Make Neurodiverse People Homeless Again"

All of the technically-minded posts I've read about systemd have been positive. The only detractors seem to be the ones with less technical knowledge, complaining about "the Unix philosophy" and parroting half-understood ideas, or worse, claiming that it's bad because they have to learn it.

I know xorg has problems, but it was good to get some insight into why Wayland is falling short. Every argument I've seen in favor of Wayland has been "xorg bad".

I hate those condescending "goodwill gestures"