Originally Posted by Triguy
Out of curiosity, do roadblocks in general typically know how you've answered before and popup (or not) accordingly?
Roadblocks and interstitials (those irritating ads that "float" over an entire page until you close them out) have perameters that are generally configured by the site allowing them to be run. Most sites tend not to run roadblocks or interstitials as they know that sort of advertising tends to piss off their readers, so you'll generally see that sort of tactic employed by sites like porn sites, or mega markerting sites - those who simply don't care if they piss anyone off.
For those sites that do care about their readers, limits of how often such ads can be run are usually put in place, along with frequency of rebroadcast, size of ad etc. Good example are irritating ads that auto play audio or video when you visit a site or a page. Responsible sites will shunt that action to be forced by a rollover or a click to initiate.
FYI << 12 years of Internet marketing / advertising for a large firm.
And yes... Replying to this triggered that nag yet again.