The situation has been like this for as long as I can remember, at least far back as 2005 :)

The key difference appears to be the "type" field  type=note versus type= or type=perlquestion

Try it :)

disappearing formatting tips for replies 

<form method="post" action="?" enctype="multipart/form-data">
<input name="node_id" value="11911" type="hidden">
<input name="node" value="Re^3: Posting tips no longer appear after pr
+eviewing SoPW posts (tye knows)" type="text">
<input name="type" value="note" type="hidden">
<input name="note_parent_node" value="1068655" type="hidden">
<textarea name="_doctext" rows="10" cols="60">asdf</textarea>
<input name="op" value="preview" type="submit">
</form>

[download]

reappearing 

<form method="post" action="?" enctype="multipart/form-data">
<input name="node_id" value="11911" type="hidden">
<input name="type" value="perlquestion" type="hidden">
<input name="lastnode_id" value="" type="hidden">
<input name="node" value="asdf as   fda asf asdf" type="text">
<textarea name="_doctext" rows="10" cols="60">asdf  as  sadfasdf </tex
+tarea>
<input name="op" value="preview" type="submit">
</form>

[download]

Its appears to have something to do with having seperate hints for seperate sections, as can be seen if you use links from RFC new question nodelet proposal (postshortcuts, newquestion, oneclickpostlinks, noscrollnewpost) ... but I guess it never quite got worked out ;)

In reply to Re^3: Posting tips no longer appear after previewing SoPW posts (type=reply) by Anonymous Monk
in thread Posting tips no longer appear after previewing SoPW posts by kcott

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