If they have titles at the end of their names like Ph.D, MD, etc... You know they are professionals. If they just have a name, you can tell they are just opinion articles.

The two articles I read on here as examples say--

The one about hackers and autism, was written by a professional. I found it complementary toward autism. It said they are especially good problem solvers and pay attention to detail.

The article about child neglect, I don't agree with at all. It says those adults who were neglected all act the way she described, and that's just not true.

As far as taking offense, I haven't been offended by any articles on here. I enjoy reading them and find them very educational. I like hearing all aspects and opinions.