Could we create a tag to encompass phones and other electronic devices, including laptops and tablets?
Here are some questions that would fit well with such a tag: How to deal with uninterested students during an optional exercise session? https://academia.stackexchange.com/search?q=phone
Right now, "etiquette" is often used for these types of questions. "Etiquette" could still be used for some of them, but "etiquette" doesn't only refer to cell phone etiquette.