Phishing (or malware) Google Doc links that appear to come from people you may know are going around. DELETE THE EMAIL. DON'T CLICK.pic.twitter.com/fSZcS7ljhu
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Google is not the world's registrar. They can send a takedown notice, but...
The name is in the Google social login API configuration, not in a domain name or SSL certificate.
Even if there were restrictions, the app could have been named "Alphabet documents" or some variant that would pass through filters
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.