what does the r/meanjokes forum have in common with a retarded third grader ? language proficiency
Are you serious?  What do you mean by that?
I mean that proper language use is accepted in society.  Why do you care what other people think about it?
People that you see on the internet might just be bad spellers, or they might not be speaking their first language.  It is not fair to compare them to people with mental disabilities.