The problem isn't the users. They might bark or cancel their subscription. The problem is with webmasters whose content is being tampered with. Thus I suggest to proceed as follows:
Step 1: Register all your content with the U.S. copyright office. (If already registered, skip step 1)
Step 2: Check your logfiles for requests coming from Charter
Step 3: Sue Charter for copyright infringement, start with $150,000 per pageview
Step 4: Goto step 2
Well, either we will all be rich, or we won't have to remember the name "Charter" for much longer.