I hadn't even come across it yet but holy hell that's a scammer/malicious actors paradise.
Sysadmin
A community dedicated to the profession of IT Systems Administration
No generic Lemmy issue posts please! Posts about Lemmy belong in one of these communities:
!lemmy@lemmy.ml
!lemmyworld@lemmy.world
!lemmy_support@lemmy.ml
!support@lemmy.world
Yeah this seems like a pretty huge oversight. I'd file an issue on GitHub ASAP.
On Kbin's end the thread ID is 57540
and the appended text is simply a hint to what is on the other side of the link (i.e. it doesn't change anything). This is standard practice and you see it a lot across the web
Try this: https://kbin.social/m/sysadmin@lemmy.world/t/57540/THLPFWYHYULHDTPUYWHDUYPHWUDUYWHUYDWHUYWHPD
StackOverflow had the same feature until people started abusing it for SEO. After that, they decided to remove the option.