For 2 reasons really. Firstly it would enable vandals to submit useless questions. Secondly, it might confuse the flag system and would increase the work load for Supervisors who'd have to go through and trash any nonsense created.
The reason for that us because it is a questioning and answering website. Its to to state your expression. So when you type if your responding then you can use a period at the end. When your typing a question you can use a question mark at the end.
In an answer to a question all punctuation marks are possible, but in a question on WikiAnswers the only punctuation that is allowed are apostrophes and question marks.
That only applies to the questions and is a technical limitation.
Valid punctuation marks in English include the period, the question mark, the comma, and the apostrophe. Other valid marks are the exclamation point, quotation marks, the colon, and semicolon.
Cause it's dumb an needs an update.
Generally, punctuation marks such as periods and question marks will precede the final quotation mark at the end of the sentence.
WikiAnswers wishes for you to use commas and proper punctuation in your answers, but only question marks and a few other symbols are allowed in asking questions. The use of periods and hyphens are sometimes allowed, as well as other specialized characters such as the degree ° symbol.
The compound with formula K4Fe(CN)6 (which I know cannot be written properly on the question input page because of its ban on punctuation marks other than question marks!) is called potassium ferrocyanide.
A subject, predicate, period, and other punctuation marks.
Formal punctuation refers to the correct and proper use of punctuation marks in writing, following the rules of grammar and style. This includes using commas, periods, colons, semicolons, and other punctuation marks appropriately to enhance clarity and readability in written communication.
Punctuation marks are typically located on the top row of the keyboard above the letters. Common punctuation marks include: period (.), comma (,), apostrophe ('), exclamation mark (!), question mark (?), semicolon (;), and colon (:). They can vary slightly in placement depending on the keyboard layout.
You can include the quote - just not the quotation marks. You could post a question similar to...Who said Romeo Romeo where for art thou Romeo - even without the quotes and other punctuation marks, it still makes sense.
An interrogative sentence ends with a question mark (?). This punctuation is used to indicate that a question is being asked.