Following on from my previous Passle, crap content is bad enough but deliberately misleading people by not making things clear is out of order and will also annoy others.
If you're going to put prices on your advertising, make it clear about what they are going to have to pay
The UK's broadband providers have been told to expect tougher rules on how they advertise their services. The UK's Advertising Standards Authority said it was considering the step to ensure people "aren't misled by pricing claims". It follows a study that indicated most users could not correctly calculate bills based on the information given in a selection of broadband ads.