An update:
- fmhy.ml is gone, due to the ongoing fiasco with mali government taking all their .ml domains back
- As such, lemmy.fmhy.ml is also gone, we are currently exploring ways to refederate (or somehow restart federation entirely) without breaking anything substantial
- We have backups, so don’t worry about data loss (you can view them on other instances anyway)
Currently, we have fmhy.net and are exploring options to somehow migrate, thank you for your patience.
At 1:30 in that second video, he shows that YouTube already converts dot zip domains, even in old comments that predate the domain’s existence. At 3:19, he shows/mentions Twitter, Reddit, Facebook, and LinkedIn. I would consider those major platforms. And keep in mind, it only takes one person downloading one file to cause major damage - the LMG hack was due to someone downloading and trying to open a fake PDF that was sent via email: https://youtu.be/yGXaAWbzl5A.
So yes, not everything does or will auto convert the links, but I think you are underestimating the potential for issues here.