1) you need to use the quote button below when replying
2) the title itself is clickbait because they made it that specifically for people to click on the video.
It autoplays because they set it to in their channel settings.
That's because it's an option in youtube to have "new viewers" see a certain video on the channel page. Unless you log in, that video will remain there as long as LMG want it to. Since a lot of new viewers get drawn in through that video, they probably won't change it for a while.
What you can do if just use a favourites shortcut that goes directly to https://www.youtube.com/user/LinusTechTips/videos so that yo don't need to see the introductory video.