Some of the reasons are as follows;
For many English is a second (or even third) language.
Many users are very young and their education is incomplete.
Many users have not learned correct grammar and spelling.
Some are just lazy.
Robert D. Borsley has written: 'Modern phrase structure grammar' -- subject(s): Phrase structure grammar
Hans Christian Boas has written: 'Sign-based construction grammar' -- subject(s): Head-driven phrase structure grammar, Construction grammar, Semiotics 'Sign-based construction grammar' -- subject(s): Head-driven phrase structure grammar, Construction grammar, Semiotics 'A constructional approach to resultatives' -- subject(s): Comparative and general Grammar, Resultative constructions
Betsy Rubin has written: 'Grammar write away' -- subject(s): English language, Examinations, questions, Grammar, Literacy
David M. Perlmutter has written: 'Syntactic argumentation and the structure of English' -- subject(s): Comparative and general Grammar, English language, Generative grammar, Syntax 'Deep and surface structure constraints in syntax' -- subject(s): Comparative and general Grammar, Generative grammar, Syntax
Klaus Netter has written: 'Head driven phase structure grammar'
The WikiReviewers test is a mix of multiple choice and written answers. It is a tool used to measure spelling, grammar, and writing skills. There are questions asking which word is spelled correctly, and questions asking for an answer to be written to give a more neutral view point. Even if you do not totally know the answer to a written question, using proper spelling, grammar, and sentence structure will still gain you points. Example: Answer 1: IDK or i don't know (0 points!) Answer 2: I do not know, but I believe that this is something I could learn if shown. (4 points)
Jonathan Burr has written: 'A compendium of religion, in questions and answers' 'A compendium of English grammar' -- subject(s): Grammar, English language
Yes. That sentence is proper as written.
Emily Norwood Pope has written: 'Questions and answers in English' -- subject(s): Comparative and general Grammar, English language, Generative grammar, Grammar, generative, Interrogative
Philip H. Miller has written: 'Clitics and constituents in phrase structure grammar ='
Donald G Schueler has written: 'Problems in English grammar' -- subject(s): English language, Grammar, Examinations, questions, Outlines, syllabi
That question was properly written in the context of grammar and spelling.