Wikipedia says:
> URL shortening is a technique on the World Wide Web in which a Uniform Resource Locator (URL) may be made substantially shorter and still direct to the required page
That's what it is.
Yes. You aren't shortening a URL, you are serving a web page that has a short URL.
I realize this is pedantic, but the relevance is that we're talking about URL shortening services, which this is not using.
I don't mind short URLs much (although I greatly appreciate it if the URL gives me some hint of the content it's pointing at, even if that makes it longer). URL shortening, however, comes with additional problems that lead me to the opinion that they're unacceptable.
Shortening 1 = using a shorter/different domain with a shortened path that maps to a longer domain/path
Shortening 2 = using the same domain with a shortened path that maps to a longer path.
If #2 isn't considering "URL Shortening" then I guess I rest my case as I agree that nothing good comes from #1. Of course #2 is still a problem if you have long-lived urls and you don't maintain their integrity. The way we use them is for short-term one-time/short-term login links so it's even less of an issue, no one is bookmarking them/saving them and for sure they are in reference papers somewhere.