Here are a few simple steps to prevent your ads from being ghosted:
While these are some general rules described by Craigslist as what they would like you to do, it doesn't mean that this will help you every time for the reasons I just mentioned.
1- Don't post more often than once a week. (how many times do you see people break this rule and get away with it?)
2- If you are going to post more often than once a week, or post in multiple locations, be sure to use a proxy or change your IP address. (my suggestion, not theirs)
3- Don't use the same wording in your ads. Get a thesaurus and learn how to say the same thing in a million ways. If they catch the same phrases being used too many times, you are considered a spammer. (Again, this happens all the time with no action taken, but you don't want to be the one they chose to make an example of)
4- Don't use HTML codes in your posts. If you link to outside websites that is going to attract their attention and make your a target for ghosting. How is it that some people use links and have no problems? I hear you asking. That is where the heavy handedness of Craigslist comes into play. They decide who gets to stay and who must go. There is no rhyme or reason for it. If you want to use a web address then break it up. Like My main website is howtobeatcraigslist.uni.cc but you can post "how to beatcraigslist. uni.cc" and just explain that they need to remove the spaces to visit your site.
5- If you are going to post images in your posts limit it to only a few pictures and don't use certain file hosting sites. At certain times they decide some places are not to their liking so you may have to change around. I know for a while they didn't like Photobucket. Try Imageshack, Google images, or whatever other place your can find.
6- Be prepared to have to create multiple accounts and have multiple emails and so forth. Multiple emails, phone numers, accounts, etc can be your best friend. I spell this out in great detail on may main site. You can also use web redirects and proxies at your pleasure.
There are many more ways to prevent your posts from being ghosted but I can't go into all of them here. Since this is a public blog site and there are certain rules that must be abided by I can only give you a small list of what can be done. If you would like a much more detailed list I suggest your read my personal blog where I go into greater detail and explain just how you can post as much as you want on Craigslist without any problems of being ghosted or being banned.