How safe is craigslist for a young guy without much experience...
Our experience suggests it's not the particular site that's safe or not but how you approach it.
If you are looking for random, quick hookups with strangers you're increasing your risk of all sorts of bad outcomes no matter where you're looking. If you put some barriers and boundaries in place and do some vetting before meeting some of those risks can be mitigated to a degree.
Regardless which site you are using ...
If you're posting ads put some specific requirements in to generate a response from you. If the person contacting you doesn't included them they're either not taking time to read and just responding to everything or they aren't respectful of your boundaries ... either way trouble ahead. Ask questions, sometimes ask the same one more than once, liars and deceitful people often can't keep track and will trip themselves up when the give different answers to the same question or won't answer at all.
If responding to ads look for red flags. Some we've learned avoid that may or may not apply because we never act precipitously and take our time setting up meetings; anyone who says not looking for "games" or "endless email exchange" which is just another way of saying "I won't make any effort to find out who I'm meeting before doing so" which at the very least means they engage in the highest of risk behaviors and likely don't take their own safety seriously and certainly won't care about yours. People who can only meet as very specific times or locations. Again, at best you're looking at someone who's on the down low and even if they don't mean you harm you could find yourself confronted by a jealous spouse/partner. At worst they could be trying to lure you to a place where you're unprepared and off your guard.
Whether posting or responding a few things we've found useful; NEVER, not ever do you give out your phones number(s) address or other personal information that could be used to locate you until you're reasonably sure the person is trustworthy with such information. Hackers, spammers, identity thieves and worse don't want to exchange e-mail they want your phone number so they can track you down, ignore anyone who is insistent on texting or talking immediately.
First meetings, perhaps more, should take place at neutral locations of your choosing or mutually agreed upon ones even if you have to bear the cost. There are many benefits to doing so beyond not walking into a trap laid by someone with ill-intent including not feeling any sense of obligation should the first meeting turn out to be with someone who's misrepresented themselves.
Unless your goal is to meet anonymously on a whim, apply some of these and come up with some of your own to maintain distance until your certain you want to meet someone and you'll be SAFER at the very least.
We've maintained accounts at many of the well known sites and truth be told our most successful encounters have resulted from Craigslist but we follow our own rules (of which these are just a few) very strictly ... their anonymous e-mail client offers one big benefit for those who use it wisely and that's the ability to vet potential partners without placing yourself at any risk.