None of these coins do anything or have any widespread adoption beyond being a speculative collectable.
BTC at least once functioned as an alternative currency, accepted by Steam and Dell, among others. But it got too expensive and took too long to process, so most merchants that accepted it dropped it.
I'm not saying no SA articles should ever be posted here, but a lot of them really are just clickbait devoid of any real analysis at best, and this article is such an example.
SeekingAlpha contributors are paid per click, and this author's article has a clickbait title, is short, light on technology, light on fundamental analysis, and instead is just technical analysis and chart reading.
People are clearly just upvoting based on the title.
BTC at least once functioned as an alternative currency, accepted by Steam and Dell, among others. But it got too expensive and took too long to process, so most merchants that accepted it dropped it.