On Area51 I open a proposal, go to the page bottom and enter a question into the form, then press "Post Your Example Question" button - the question is posted. Then I enter another question there and post the button again - the text appears
new users can only post example questions every 3 minutes; try again later.
and the "Post Your Example Question" button gets inactive forever. So when the three minutes pass clicking on the button has no effect until I put the cursor into the form edit - only then the button gets active again and I can post the question.