I think the internet would be a much better experience if every person online had generic details about themselves attached to their handle; e.g. age, ethnicity and nationality, parents' net worth and income, employment history or lack thereof, etc. So just like in real life, I could easily dismiss the strong opinions of others who do not have the experience necessary to form any educated opinions on which they speak.

Yes, there is no truth, and no one's reality is less "real" than others -- but children are known to talk confidently (dare I say arrogantly) about things which they know not, when they think there are no consequences. Therefore, I would like to be able to easily filter out their opinions, so as to improve my reading experience, and that of others.

If they were not a 2nd-year CS student, they would either be: very early into their career and lucky, willfully naive or privileged, or simply a malicious and adversarial person. Atleast a child can be taught to act properly.