It has nothing got to do with the forum at all, these are all cookies stored on your computer, cookies store information about recent web sites you have visited, that’s why you are seeing all these advertisements, you will especially see all of these adds if you are torrenting illegal music etc.,
Here is a valid definition of a cookie: A cookie is a piece of text that a web server can store on a user's hard disk, Cookies allow a Web site to store information on a user's machine and later retrieve it. The pieces of information are stored as name-value pairs.
For example, a Web site might generate a unique ID number for each visitor and store the ID number on each user's machine using a cookie file.
If you use Microsoft's Internet Explorer to browse the Web, you can see all of the cookies that are stored on your machine. The most common place for them to reside is in a directory called c: windows-cookies. When you look in that directory on your computer, each file is a text file that contains name-value pairs, and there is one file for each Web site that has placed cookies on your machine.
You can see in the directory that each of these files is a simple, normal text file. You can see which Web site placed the file on your machine by looking at the file name (the information is also stored inside the file). You can open each file by clicking on it and delete it.
Or just disable cookies in your browser, there are various methods depending on the browser you use. But be aware a lot of web sites use cookies for advertising and browsing content. If you disable it you might not be able to view some content as most web sites require cookies to view rich content. You can also enable or disable pop up’s and set your IE security zone to the highest level..
And for the umpteen time. I am not Ian or Steve .