I tried to ask a question:
Can we say 'you think therefore you are?'
http://www.britannica.com/topic/cogito-ergo-sum
but I got this:
Wait! Some of your past questions have not been well-received, and you're in danger of being blocked from asking any more.
For help formulating a clear, useful question, see: How do I ask a good question?
Also, edit your previous questions to improve formatting and clarity.
But my homepage says I haven't asked any questions!