Nope. Clicked straight on through to the first article, and then added my comment.
Allow me to explain how things work here at Slashdot.
First, you read the headline. Advanced users might also make mental note of the Slashdot editor who posted the story (this helps to frame your reactions to the story.)
Now, there are two differing schools of thought as to what to do from here. One camp jumps straight from here into commenting on the story, having already taken in sufficient information at this point to begin forming and expressing opinions. The other camp will read some or all of the summary before commenting. They claim the latter method helps them in identifying and avoiding commenting on duplicate stories.
However, at no point should you ever actually read the articles (this was where you made your critical mistake.)
It's just not done.