Yes, that is true.
And using Adblock Plus (or any similar adblocker) is also a good idea.
Adblock Plus blocks advertisements. Even on Wired. And on YouTube.
If I watch a YouTube video without Adblock Plus, then it is usually full of advertisements. Sometimes before the video, multiple times during the video, and at the end of the video. It is so annoying, but Adblock Plus is blocking every advertisement. Some websites do not let Adblock users watch their content. I very rarely turn off the Adblock Plus on those websites. I usually avoid those websites.