Good idea, but not a necessary idea. In the meantime, you could use my Scratchpad Poster and add a little code that adds a timestamp yourself.

UPDATE: add this line right before the call to &post()

$cont = "<h4>@{[scalar localtime]}</h4>\n$cont\n<hr/>\n";
[download]

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)