A little link miracle

A very strange thing just happened. I was posting a comment in a blog (I visited that blog for the first time) and with that comment I added a link to one of my pages. When the comment appeared a moment later, there was another link added at the bottom! As I had the whole text that I had just posted copied on to the clipboard, it was very simple to make absolutely sure that the other link WAS NOT THERE - along with the text [my username] hopes you will read...! In addition to that, the link appears to be in a separate box (I have no idea, how to make such a box to appear either!)
I also found that I had made an error (a space) in the first link (it's actually there, in the clipboard version), so this one (the one I added myself) doesn't work.

Now, everything would be clear, if that second link pointed to whatever place, but it's also linking to my website - only to another page. And, if I now think about it, THAT - the second page - would be more much more suitable with all its video material.
BTW, I also checked my logs, there was no traffic exactly at that time on my website, so it couldn't be that the blog has some strange module that adds something like this out of the blue.
Of course, I'm very grateful if someone can explain me how this could have happened.

Ah yes, the blog address you may want to check, is this: Law Of Attraction Or Just Coincidence? >> Derek Semmler dot com - WordPress Ninja