Please search for my reply on the "this is why you're here" case on this page for more info. Basically, I claim that to reach such conclusions you need an imaginary pedophile in your mind that gets aroused by the material (but not the entire thing, only the timestamp). Then, and only then, this product of fiction makes that context unmistakable.

In reality, I could have in my mind someone that gets aroused by... maraccas (I don't know, it's the most mundane thing I could think of). There's a maraccas video, and there's a comment with a timestamp that says "this is why you're here", so in my mind, there's this group of people that get aroused by maraccas and this comment is for them. The intent and context is clear. All this fabrication is not less real that yours.

Chances are there's a guy out there that actually matches the pedophile in your mind, however, they're not wasting their time clicking timestamps on youtube. If you research porn, people get adapted and need worse and worse things to "get on". The actual pedophile stopped being impressed by such timestamps content long time ago.