Uhhh... did you read the posts? The link goes to a message board in which the subjects (the one line at the top of each post, just like here on NSXprime) are about cars, but the content of the posts is about explicit sexual acts. (Perhaps you only read the subjects, and were fooled into thinking that they were only about cars?)
I'm not trying to jump down Brian's throat (probably a bad choice of words) for doing this, and do not intend any personal animosity by objecting (and I hope Brian understands this). However, I just don't think that posting a link to sexually explicit materials is either necessary or appropriate. If he wanted to post that he's glad he's here and feels that NSXprime has a more mature (or less disgusting) tenor than other boards, he could have easily done so without providing a link to that material.
I also don't condone posting any similarly "very interesting pictures" here, and in the few such cases I've seen, Lud has removed them.
I don't consider myself a prude about such things, and am not personally shocked or offended. I just think there are things that are appropriate and acceptable on NSXprime, and things that are not, even in the Off Topic forum - and this is one of the latter. Of course, we are here visiting Lud's home, and he makes all such decisions since it's his place, not ours.