[rapcal]

Every bit of technology provides benefits and threats. URL shorteners are no exception: they definitely add value (and I don't mean just from the sender's perspective, but also on the recipient's end, eg. by allowing you to customize web addresses making it easier for people to remember them) but can also lead to harm (obfuscating links to malware).

It's like saying a hammer is a useless tool because it can bust your thumb.