my opinion is that if you cant verify who a person really is, what their profession is then there most likely is no way to verify whether someone is 8 or 80.

also my opinion is that mental illness does not strike only those over a certain age so it would be called discrimination to have psych central put an age limit when it is a mental health website that addresses all forms of mental illness in all persons regardless of age, race, religion, cultures and locations (basic discrimination laws here in the USA and last I knew this mental health website is located in the USA)

also there is a mental disorder where adults have alternate personalities of all ages, putting an age limit for say 8 or 9 would make it so that someone who has an alter aged 5 would not be able to post here if they happen to get triggered and dissociate\ switch into being that 5 yr old alter while reading on psych central. in fact there are some boards that young alters and people can post and participate in here at psych central.

I just went back and read the rules of the site and there is no age limit listed.