Check out this article for more information on Twitter’s Media Policies.
How do I flag media?
You may encounter media that requires review by the Twitter team. If there is content you feel should be reviewed by the Twitter team because you believe it should be behind a warning message, or because it contains illegal content, please follow these instructions to flag the media:
Please remember that if you are seeing something you don’t like, and Twitter hasn’t placed a warning label before it, it’s possible that it doesn’t meet our threshold for a warning on the media.
What happens if my media gets flagged by other users?
Once someone has reported your media, it comes into the Twitter team for review. If we find that the media wasn’t marked as being possibly sensitive at the time of the upload:
You will receive an email letting you know that we’ve labeled your media and changed your media setting. You will be able to change your media settings on your account settings page, though this image and any other images that have been labeled will remain marked as “possibly sensitive”.
If you repeatedly upload media that are mislabeled, the Twitter team will:
Can I appeal a decision made by the Twitter team?
Right now there isn’t a way to appeal this decision, so you should definitely make sure your media uploading setting is marked appropriately. If you repeatedly upload media that is mismarked, the Twitter team will move your account setting permanently to “Mark my media as having possibly sensitive content” to avoid future mismarked images.
How to report other Twitter Rules violations
Profile photos, header photos, and background images
We remove profile photos, header photos, or background images that contain pornographic content. To report pornographic content on a profile photo, header photo, or background image, please go here.
Privacy violations
If someone has posted your private information on Twitter, please submit a Support ticket. Please make sure to select the “Something Else” category, and then select “Harassment” from the drop down menu on the webform. Once you've submitted your ticket, we’ll email you a ticket confirmation with more information.
We remove information such as:
Keep in mind that though you may consider some information to be private, it may not fall within our privacy policy. Check out this article for more information on private information.
Harassment
If you feel you are being harassed, please review our article on abusive users for more information on what you can do now, if you should contact local authorities, and how to submit a support ticket.
Spam
If you think you’ve found a spam profile, follow these steps to report it to us:
Check out our policy page for more information on reporting spam.
Copyright
How do I report an image hosted by Twitter?
If you need to file a copyright report for a profile photo, header photo, background image, or image hosted by Twitter, please review our copyright policy page for more information.
How do I report an images hosted by a Third Party (e.g., TwitPic, YFrog, etc.)?
You’ll be able to flag any image displayed on Twitter, however, any warning message will only be seen by viewers who access that media through Twitter.
Different companies have different media hosting policies that may or may not mirror Twitter’s; you should contact their customer support for further information on the specifics of their policies. Here are some links to popular image hosting site support pages:
Here are some links to popular image hosting site support pages:
Flickr: http://www.flickr.com/help/with/abuse/
Instagr.am: http://instagram.zendesk.com/home
Lockerz: http://support.lockerz.com/forums/391993
Posterous: http://help.posterous.com/
Twitgoo: http://twitgoo.uservoice.com/forums/14958-twitgoo-feedback-and-support
TwitPic: http://twitpic.com/contact.do
YFrog: http://stream.imageshack.us/content.php?page=email