Hi dear, thank you for your long and detailed question (I summed it up a bit, I hope you don't mind).
There are three reasons for this change.
1. The old title was a little misleading
I still like the old title "Heil!" because I think it is easy to remember and to pronounce.
But in the past this title, coupled with the nazy symbol (the pentika) earned me some trouble (I was request to remove one or the other from one website, and people repeatedly asked if I am a nazi or if I do support nazis in some way*. )
* Please don't get me wrong here: people are perfectly legitimate to ask this to me, it is I that got bored to answer the same questions over and over again.
2. I wanted a simpler name for the website
A reader convinced me of the importance of having a top domain level for the site with a recognizable, unique and short name, and "Ybrids" happened to be free.
3. Guess what? This story is about Ybrids.
And the last reason, which is probably the most important: this new title "Ybrids" does represent much better what this story is about. Ybrids are everywhere.