A terms of service agreement typically contains sections pertaining to one or more of the following topic
- Disambiguation/definition of key words and phrases
- User rights and responsibilities
- Proper or expected usage; definition of misuse
- Accountability for online actions, behavior, and conduct
- Payment details such as membership or subscription fees, etc.
- Opt-out policy describing procedure for account termination, if available
- Sometimes contains a Arbitration clause detailing the dispute resolution process and limited rights to take a claim to court
- Disclaimer/Limitation of Liability clarifying the site's legal liability for damages incurred by users
- User notification upon modification of terms, if offered
The researchers note that rules on location and time limits may be unenforceable for consumers in many jurisdictions with consumer protections, that acceptable use policies are rarely enforced, that quick deletion is dangerous if a court later rules the termination wrongful, that local laws often require warranties (and UK forced Apple to say so).