Someone actually emailed Valve about this back in 2013. Here’s their response: https://i.imgur.com/4sa1Ln6.jpg
Thank you for contacting Steam Support. In the unlikely event of the discontinuation of the Steam network, measures are in place to ensure that all users will continue to have access to their Steam games.
It seems like Valve wants us to think they have an EoL plan. With the goodwill they’ve built over the years, I want to believe them.
This is a joke, right? This feels like a very dumb solution. I don’t know much about UTF-8 encoding, but it sounds like Roman characters can be encoded shorter than most or all others because of a shorthand that assumes Roman characters. In that case, why not take that functionality and let a UTF-8 block specify which language makes up most of the text so that you can have that savings almost every time? I don’t see why one would want it to be random.