uh yah .. i saw this JavaScript for blocking geocities , angelfire , tripod etc. pop ups. .well i was wondering if any one used these and does any of them delete your site if you use them ?

If the hosts find out your useing an ad stopper code you will get deleted yes, also its not something you can talk about/ask about on the forum.
From the rules

4. Please do not suggest warez sites, free programs, ad killers, adult sites, anything illegal. Those people who do suggest those sites will be banned permanently from posting.