It drives me nuts that the Star Telegram and Morning News (and hundreds of other) web sites require you to register before you can view them. It's free, but annoying. I normally create a fake profile making me a 60 year old man from Iowa.
But not more. This site has a database of usernames and passwords that will let you by-pass that registration process. For example, type in www.dallasnews.com and you'll see what I mean.
I'm pretty sure this doesn't qualify as a technical "sin".