Video ads are currently on WikiAnswers next to some answers to questions, but they can be played at your discretion, and do not play automatically when the page loads.
Yes, WikiAnswers has video ads, but they can be played at your discretion, and do not start playing on their own. They can sometimes be found on the right hand side of an answer to a question. You can click on it to play the ad, but it does not play involuntarily.
WikiAnswers is ad-supported, meaning that people pay WikiAnswers to display ads on their website. When people click the ads on WikiAnswers, WikiAnswers receives money. WikiAnswers may also get money from partnerships with other websites.Answers.com makes a profit from wikianswers when you click on the textual advertisements provided by Google.
If you look on the right of a lot of questions, it may show a video with 'Video Sponsor' written above it. You may also occasionally see an ad below your Blue Navigation bar here and there, and sometimes, even below the Answer and Ask search box, there will be Google ads below there when you are viewing some questions. All of those are sponsors who pay to get their ad on WikiAnswers, and that is how WikiAnswers is funded.
Ads help to generate revenue for the site. There is the option of registering for the site, and turning off ads in your site settings.
Ads are not displayed to users who are logged in to WikiAnswers, so that is most likely the cause. I.E. 9 may also be somehow blocking the ads but I doubt that is the case. If you recently installed a browser extension such as AdBlock, that could also cause the ads to disappear.
It is unfortunate that some contributors may feel that the ads are too intrusive; however the ads are part of what keeps the whole of Answers.com free to use.
No. WikiAnswers and Wikipedia are two entirely separate organizations and have not financial relationship.
Wiki Answers is not a video sharing site.
Because the advertisers on the pages pay to be able to place their ads there. Would you do this if you had to pay for it ?
No. Check the "Related Links" below the ads on the answer pages for possible links to images.
Nope but you can post links
Ads exist for the same reason you don't have to pay a membership fee to join this site. The ads pay for much of the expenses of Answers Corporation and the site. While Answers once used a subscription model, they no longer do, and users can access the answers for free. So they had to go to an advertising model.