YES.\nI accidentally clicked on something that was NOT yahoo and entered my password- it stole my account and I could not log in after that. Now, I always directly type in the yahoo address that I want to go to rather than clicking on a link from an outside site.\n\nAlso, I once posted some artistic, but provocative pictures. They were nonnude, but apparently someone considered them adult in content or to be in some violation of "terms of service", and without warning that yahoo account and email were frozen. I tried to contact yahoo about this, but no real person got back with me. I had had this account since I was 19 and it was an annoyance to lose (luckily I download my email). \n\nI've known people (mostly men) who randomly IM others (women) in chatrooms or randomly IM after browsing online profiles and have been marked as "spam". Apparently if this happens enough, your account is frozen. I don't think that yahoo reviews the reasons people hit the "spam" button, it seems to be that if alot of people are hitting the "spam" button when you IM them then your account can be frozen. \n\nYahoo needs to have a better way to control the posting of adult content, and the unsolicited IMS rather than having a general "spam" button. Until their system for detecting and preventing "real" instant message SPAM is perfected, they need to have a place to check mark a "reason" (unsolicited business contact, adult content, harassing, etc...). \n\nIf you chat or IM, I would not use that email address as your primary email address because of these issues.\n\n... hope this helps :P