[Feature request] detecting already posted content and refraining from posting

Say i schedule a link of an article to be posted. While the time until it gets posted the link gets already posted in the same intended community but just by another user. Once time's up my post would basically look as a duplicate. Is there a way to make the scheduler detect if the post already exists in the target com and that way doesn't post instead. (even if it needs to post, then find out that it is posted -cause it would appears as crossposted to X-com, at least thats how i find out when posting manually- and then just decide to delete instead. even in a timeframe of 30 seconds or so no one would probably even catch up to that. That would be nice and would spare the mods of deleting duplicate posts and doesn't make me look as a com spammer lol. Thanks.