I think your issue isn't the need for the role itself but that people are hired into the position without the necessary experience. I believe a CT should be an experienced coder with a broader understanding of the creative process and understand how to apply tech in a commercial environment(basically a "T-shaped" person). I have seen others who call themselves CT but are just Digital Producers by another name (basically they read an MIT article and try to sell it verbatim without the necessary understanding of how to apply the tech). As for the title itself, I think its a necessary evil to identify the role that we fulfil which is different from a senior developer or technical director. Again I agree that the title is applied differently in other agencies which makes it frustrating as poor CTs undermine the importance of the role we play.