Simple and very useful idea for SEO and bandwidth saving

[abdobasha2004]

I have an Idea, but I need a programmer
I do not know about php and xml but I know about SEO
the Idea is :
showing tags like
<!-- /logo -->

<!-- content table -->
for adminstrators only or members only using vbulletin if condition like
<if condition="$show['member']"></if>

these tags appear only in html source of the page
if there is plug in or mod that can phrase every tag starting with "<!--"
in an if condition this will decrease the page size a lot wich will help very much in SEO and saving band width

to sum up

the mod idea is not to show tags like <!-- /logo --> to visitors

thanks