Getting an email sounds quite courteous. Most companies just put an extra sentence some in the footer along the lines of "these terms can be updated anytime wit

Getting an email sounds quite courteous. Most companies just put an extra sentence some in the footer along the lines of "these terms can be updated anytime without prior notice. check back here every 20 minutes, if you want to know about it, lol" (HN has this too btw - which makes sense for accounts without email. Not so polite regarding the other accounts.)