From the ToS:
You agree to not use the Service to submit or link to any Content which is defamatory, abusive, hateful, threatening, spam or spam-like, likely to offend, contains adult or objectionable content, contains personal information of others, risks copyright infringement, encourages unlawful activity, or otherwise violates any laws. You are entirely responsible for the content of, and any harm resulting from, that Content or your conduct.
We may remove or modify any Content submitted at any time, with or without cause, with or without notice. Requests for Content to be removed or modified will be undertaken only at our discretion. We may terminate your access to all or any part of the Service at any time, with or without cause, with or without notice.