don't spam on the weekend. Of then admins of various forums and chats have enough idle time to monitor the shit out of posts. Usually I have to replace my spam every few hours on social networks cuz it gets removed quickly, as opposed to weekdays when it says up much longer. Also, don;t use conventional URL shorteners. instead, use blogger because redirect sites will delete at the tip of a hat. I have burned though the major re director services, but blogger + java redirect is rock solid and I'm still using the same redirect URLS from months ago with no problem.