My $0.02:
I will start by acknowledging that I am in absolutely zero way an SEO/Marketing pro. My writing has always served a different aim (namely, I write to learn), so you may be totally right.
My reaction to the teaser approach is based on the following:
- there’s way more great information on the internet than I could ever hope to consume
- if I decide to spend my time reading something, there’s an implicit contract that I have with the author that they’ll teach me something (this is not true for all types of writing, but I’m making a few assumptions about the fact that you’re writing a tech blog)
- the easiest way to break that contract is for the author to have a post that does not fulfill the promise of the title (i.e. “click-bait”)
I’m not suggesting that all teaser articles are click-bait. As you note: you’d write an article that could stand on its own before linking back to your site. I would counter that that is merely doubling your work. You’d now have to write two compelling articles (and the shorter one is likely to be the harder one).
On the other hand, the path of least resistance with a teaser article is to simply abridge the content so that a reader gets to the “good” part and then has to click a link. That’s annoying.
Think about reading a newspaper (the paper kind 
). Articles start on the front page. If you start reading it, you have to flip a page. It’s frustrating. With print, there’s a legitimate reason to take this approach. Space is constrained. The internet has no such limitations and by artificially imposing them you’re not taking advantage of the new medium.
Again - I’m talking from a purely consumer perspective. There may absolutely be valid business (i.e. SEO/Marketing) considerations. However, if I’m building a business, I think you’ll be hard pressed to treat customers (in this case readers) right at every step.
