Thread:BertH/@comment-3088201-20140128011128/@comment-303594-20140210203852

ArceusFan: That's simply not true. Whilst really dodgy websites might be infested with trojans (never install software from a website you don't trust), reputable sites like Google and Wikia would never do that. First and formost, that would be illegal.

Sites like Wikia, Google (as well as many other places such as TV) use ads to try to sell products that they think you're interested in. I'm not sure how trying to sell you things is bad, it can be annoying at times, but they're not forcing you to do anything.