<p>(+1, <em>I thought I had asked about this on meta a while ago, but evidently I didn't.</em>)  </p>

<p>I agree, I see no reason for the existence of the <code>[students-t]</code> tag.  (I just edited its excerpt to note this.)  I think starting to re-tag those instances where it is used to refer to the distribution is a good idea / first step.  Since there are several such cases, my recommendation would be to do 2-3 at a time, several hours apart so as not to flood the main page.  I did the same thing a few weeks ago w/ the ambiguous <code>[fisher]</code> tag.  (You may even want to re-tag those instances where it refers to the test, but you could do that second--or not at all.)  These re-taggings should really be done <em>before</em> the tag is made a synonym for <code>[t-test]</code>, or those threads will become mis-tagged and the situation will be much more difficult to rectify.  </p>
