This article is correctly using a rhetorical question for discussion. (The answer to the headline is "maybe")

Betteridge's law still applies. Most headlines with a question are really trying to convince you that the answer to that question is yes, when it often isn't. Besides, rhetorical questions in headlines are tacky and shouldn't be used.

In support of betteridge, I still keep a personal blog on a vanity domain, and you can pry it out of my cold dead hands.

I'd be interested to know how you arrived at that phrasing as opposed to "vanity blog on a personal domain." I think it says a lot about why selfhosted blogs are becoming less common!

By definition, blogs are about vanity. Even when you're doing something important or documenting progress, blogs are for self-important people trying to express or justify their past actions or current beliefs.

That said, I'd like to think my personal blog is to document my personal development and progress, even though it probably is ultimately just an exercise in self-aggrandizement. but I _try_ not to make it about vanity.

however, the domain name is very much a vanity thing, just like having LNX4WIN on your licence plate would be.