Username/URL Abuse or Squatting. Tumblr’s usernames/URLs are meant for the use and enjoyment of all of our users. Don’t squat, hoard, amass, accumulate, accrue, stockpile, rack up, buy, trade, sell, launder, invest in, ingest, get drunk on, cyber with, grope, or jealously guard Tumblr usernames/URLs.
Confusion or Impersonation. Don’t do things that would cause confusion between you or your blog and a person or company, like registering a deliberately confusing URL. Don’t impersonate anyone. While you’re free to ridicule, parody, or marvel at the alien beauty of Benedict Cumberbatch, you can’t pretend to actually be Benedict Cumberbatch.
Privacy Violations. Don’t use Tumblr to deceptively obtain personal information. Don’t post content that violates anyone’s privacy, especially personally identifying or confidential information like credit card numbers, social security numbers, unlisted contact information, or private photos of your ex’s junk (no matter how remarkable).