Did you read my comment? To do that they'd have to cut all the speeds drastically, but charge the same.

That's their problem, not mine. I'm not the one that lied to get business.

I'd have a worse service for the same money. It would force the situation to always be exactly the same as the worst possible situation now (everyone using it at the same time), assuming it was done perfectly. How is that their problem? How is me getting a slower service for the same price not my problem?

Second, where did they lie? My terms and conditions explicitly state that speed is dependent on many factors, including the number of active users.

No, you'd have the same service for the same money. It would just be labeled correctly, and not a complete fabrication.