Or maybe they do mean to meet up, only to freak out at the last minute. Most of the time these people never have the courtesy to even email you or text you with a simple "I’m sorry, I’ve changed my mind" –they simply never show up or answer emails.
It’s a very sh*tty thing to do, but it happens a lot. CL is a numbers game; for every hottie that you might meet and gives you a fun time, you’ll have an equal number of outright flakes. It never stops being annoying, but it helps when getting ready for one of these arrangements that there is always at least a 50/50 chance that person just won't show up.
Also, anyone using dollar signs in their po$ts are also prostitutes. If you’re 23 and look 23, then by all means post your real age in your ad.
So if it says something like "Looking For Nice Guy$" you’d best move on, unless you’re willing to get your wallet out, and also run the risk that the ad is bait for a sting operation. But Post as the age you think you look like, not what age you actually are.
For more dating ideas, check out this list of the Best Dating Sites. However, when it comes to getting casual online sexual hook ups, we have it SO much easier than you (or, since this is all about craigslist, I'll just say Str8s, to keep with the lingo.) Women by and large just don't go looking for casual sex like men do, most likely because they can, for the most part, get it on the street fairly easily if they're looking for a man.