I don't think no. 30 is a good idea, I find it very irritating when a site does this. If I want to open something in a new window/tab, I'll do it myself.
Oh, and if the link is Javascript that attempts to enforce new or different tab, then thre browser should send a distributed denial of service attack to the website. Or better still, assassinate the person resonsible for it (though I suspect this is AI-complete).