<p>Here is a <a href="https://stats.stackexchange.com/questions/6795/least-angle-regression-keeps-the-correlations-monotonically-decreasing-and-tied">question</a> which is a homework question. This is problem <a href="http://www.stanford.edu/~hastie/local.ftp/Springer/ESLII_print5.pdf#page=115" rel="nofollow noreferrer">3.23 on page 97 of Hastie et al., Elements of Statistical Learning, 2nd. ed. (5th printing)</a>. There are several problems in my opinion:</p>

<ol>
<li>The poster does not mention that this is homework.</li>
<li>The poster rephrases the original problem by omitting some key definitions, but the questions he asks are from the original problem. </li>
</ol>

<p>This might be honest mistake, but I do feel somehow cheated, so I already downvoted the question. What I want to ask is whether I should edit the question to reflect that this a homework and to give the references. Also what is the policy for such type of questions? </p>
