* They are often late in reporting a story. This is fine for what Ars is, but that means by the time they publish a story, I have likely read the reporting and analysis elsewhere already, and whatever Ars has to say is stale
* There seem to be fewer long stories/deep investigations recently when competitors are doing more (e.g. Verge's brilliant reporting on Supernatural recently)
* The comment section is absolutely abysmal and rarely provides any value or insight. It maybe one of the worst echo chambers that is not 4chan or a subreddit, full of (one-sided) rants and whining without anything constructive that is often off topic. I already know what people will be saying there without opening the comment section, and I'm almost always correct. If the story has the word "Meta" anywhere in the article, you can be sure someone will say "Meta bad" in the comment, even if Meta is not doing anything negative or even controversial in the story. Disagree? Your comment will be downvoted to -100.
These days I just glance over the title, and if there is anything I haven't read about from elsewhere, I'll read the article and be done with it. And I click their articles much less frequently these days. I wonder if I should stop reading it completely.