I've always seen the inclusion "considered harmful" in a title as sort of a comedic device, not to be taken as seriously as the author does. It's a signal that

I've always seen the inclusion "considered harmful" in a title as sort of a comedic device, not to be taken as seriously as the author does. It's a signal that "I'm about to say something opinionated; if you're easily offended, you probably don't want to read this". The article itself is such an example. I'd much rather read a forceful, strong argument that contains some controversial claims than a piss-weak "perceived benefits and weaknesses of" essay, as the author suggests. Sometimes treating a topic brutally can get your point across more effectively. For example, some of James Mickens' more colourful writing demonstrates this.