If your device is blocked from being able to register, it may be due to the following: You’re attempting to register from a device that has previously had at least one account suspended for violating the Tango Privacy Policy or Terms of Service.
Those violations include, but are not limited to, the following:
hateful, threatening, pornographic, obscene, abusive, racially or ethnically offensive, libelous or defamatory content
content encouraging conduct that would be considered a criminal offense or bring forth civil liability
harassment to other users including continued unwanted contact, offensive use of language (public or private), displays of nudity
spamming channel posts (constant begging for people to add you, copy and pasting large comments, illegible writing, and etc.)