Shortened links and social media

I've been into IT-sec for a few years now and I have recently gotten in to the whole reddit/r/netsec, twitter, security.stackexchange thing, to get more involved with the community. What surprises me alot is that people are posting shortened links everywhere.

How can It-sec people trust other it-sec people? Are people content with just using the lastest updates with NoScript and hope there is no one linking to a page with an advanced exploit kit or persistent xss vuln.