The problem is the people responding to agree with that comment - two voted "err on the side of caution and link those secrets." But

But an image where nothing explicit is happening, I don't see why it would need to be linked. Even images where sex is imminent but not actually happening are not explicit.

According to that, both would be posted normally.

It's a tricky thing to make judgment calls about because nobody agrees. All I can do is go with the majority. ):