Unlimited means without limits or restrictions.
If a company uses the word unlimited to describe their service, but then attempts to weasel out of it via their T&Cs, that doesn't constitute a disagreement over the meaning of the word unlimited. It just means the company is lying.
From a philosophical standpoint, I agree, but it terms of service providers "unlimited" has always pretty much always been synonymous with "unmetered" (i.e. we don't charge you for traffic, but we will still throttle you if you are affecting service reliability for other customers)
Sorry but unlimited has never meant unrestricted. TOCs always have restrictions. If it were unrestricted it would be used for all kinds of illegal stuff they don’t want on their servers, child pr0n and whatnot. They can’t legally offer a service like this without restrictions as they operate within an existing set of laws.
Unlimited however, they can offer. I don’t see how people get into mental block of thinking something is nefarious when a company offers you unlimited hosting or data. Yes, they know it’s impossible if everyone took full advantage of that. They also know most people won’t and so they don’t have to spend time worrying about it. It’s a simple actuarial exercise to work out the pricing that covers the use of your users.
Back in the early 2000s I ran a web hosting service that was predominantly a LAMP stack shared hosting environment. It had several unlimited plans and they were easy to estimate/price. The only times I had an issue of supporting a heavy user, it would turn out they were doing something unrestricted. Back then, it was usually something pron or mp3 related. So the user would get kicked off for that. I didn’t have any issues with supporting the usage load if it was within TOS. The margins were so high it was almost impossible to find a user that could give me any trouble from an economic standpoint.