[chriswarbo]

I agree. I think it's important to keep track of who cares about the user's task too. As you say, if the user cares about a task, they'll jump through many hoops to get it done. Especially when money is involved (e.g. finding cracked copy of XYZ to avoid paying license fee)

When someone else wants the user to do a task, e.g. a business wants users to install and use its software, then it's definitely better to assume that users will give up at minor annoyances or complications. Again, especially when money is involved; i.e. it should be as easy as possible for people to give you money.