looks like a working fallback for non-js users. After digging deeper one learns that this noscript-code is not working at all as it is, because one actually has to add the rec param.
I suggest changing it to the following (rec param given and short explanation):
<!-- Piwik -->
<script type="text/javascript">
[...]
</script>
[b]<!-- uncomment the following if you want non-javascripts users and bots to be counted [/b]
<noscript><p><img src="http://piwik.mysite.org/piwik/piwik.php?idsite=2[b]&rec=1[/b]" style="border:0" alt="" /></p></noscript>
[b]-->[/b]
<!-- End Piwik Tracking Code -->
Another alternative would be to remove the noscript completely then: There is no need for non-working code.
the noscript code is there to alert users that it is possible to track visitors without javascript. It’s better to leave it ‘disabled’ as it has absolutely no impact, and also still allows to see in the logs requests from bots to piwik.php