Getting Scammed: For Dummies - How to know if you're being scammed and what to do if scammed.

PART ONE: HOW NOT TO BE SCAMMED

1. If they have added you, ask for a steamtrades profile. If they provide you with one with a URL linked to it different than the one on their profile, remove them. Be sure to check that both profiles have the same amount of games.
2. Check their steamrep profile to see if they are a scammer. Also check, to see the creation date of their profile. If their profile was made within the last month or so, be wary.
3. If they have less than 30 games in their library, be cautious.
4. If they offer you an outrageous deal (along the lines of Bioshock Infinite for your Bad Rats) its most likely a scammer.
5. +rep on the user's profile is easy to fake and should not be trusted. Since all comments can be deleted by the scammer, putting -rep on a profile is pointless.
6. Be cautious of anyone who is/has been trade or VAC banned.
7. If their username says [Valve] or [Steam] in it, it does not mean they are from Valve. However, if it says [CANDY] it means they have free candy and should be trusted 100%.
8. Make sure their paypal is verified before doing a paypal trade.
9. Check their recent game playtime. Many scammers use seperate alts for gaming and scamming.
10. If the item is tradeable make sure it isn't region locked.
11. Make sure that a tradeable collection has what you want in it. For instance, old copies of CS: Complete do not include CS: GO
12. NEVER click links to steam profiles given to you by traders. These are often phishing sites and logging into them will result in your steam account being hijacked.

PART TWO: WHAT DO IF SCAMMED

1. Do NOT make a thread on steamgifts. You will be suspended for calling out users. Instead, submit a ticket to steamgifts support with proof of the scam.
2. If the scammer has a lot of +rep on their steamtrades profile, check to make sure that it was the actual user. If not, contact the person being impersonated and let them know.
3. Take screenshots of your conversation.
4. Get their steamID64 off steamrep by entering their profile's URL in the searcher. Save this URL for future reference.
5. Report the user as a scammer on steamrep.
6. Cry yourself to sleep.

Leave any other tips below, sure there are some things I forget.