Imagine a company breaks a relationship with a supplier, to then banish reference of the former supplier from the website - on strict orders from the supplier. Just to show them that orders have been followed I could set the offending pages to return 451, as an in joke rather than 301 to the home page (or even 404 which would mean they stay longer in the search results, hence 301).<p>Due to idiots like myself I think that signal to noise on this could be high. In other circumstances, and &#x27;for a laugh&#x27; I could make some expired pages return 451 just to bring the novelty value of this new status code to a colleague, then forget about it and leave some URLs out there in cyberspace, forgotten about but returning 451.<p>Then this censorship crawler comes along, finds we have 451s for some internal joke reason (and maybe a former supplier) to not get the joke (as it is only a bot). Would the bot&#x27;s owner then add an uptick in the censorship &#x27;figures&#x27;?