When you post a simple pointer to a post in someone else's blog and you aren't adding anything to the conversation, should you post a trackback anyway, just so the blogger knows he's been linked?
If you do, then people reading the other guy's blog are going to be following a trackback that is just a pointer to the post they came from. It wastes their time. But, if people link to my blog, I like to know about it.
So what's the proper etiquette?