I get unreasonably (okay, reasonably) upset when the simplest way to share an image is to take a screenshot of the image.

You should click the link.

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.

I feel like the "no work" part is probably worse

You got me curious, so I looked it up.
This isn't a "let me google that for you", it's an "I'm joining you on this journey".

https://develop.kde.org/docs/apps/dolphin/service-menus/
(KDE)

Looks like you drop a .desktop file into ~/.local/share/kio/servicemenus.
Name the file extensions, write your Exec= line, fill in a couple other details like what icon to use and what it should be called in the right-click menu, save it, and you're done.
I imagine it's similar in xfce.

You're right! But also, horses were native to North America but they went extinct 10,000 years ago and weren't introduced until much more recently.

ah yes
the original 151
with such treasures of creative genius as purple rat
another rat
and my personal favorite
some eggs

Yes.
That's the list of things I know I should be doing but can't.

Speed test to 127.0.0.1

Your pawns are all male?

Dear god

Good old Bobby Droptables