Not a scam. No strings attached either. I picked up the Destiny bundle and I have no use for this since I'm already a member and plan on renewing my subscription on Black Friday. So I figured I'd give the code to somebody here.
Okay, well, there is some fine print (from Sony's end). The trial codes are only valid if you have never used PS+ before. If you had a PSN account when the passwords were compromised and Sony gave a free trial and took advantage of that, you are not eligible.
Anyways, leave a comment if you're interested and I'll try to pick somebody as randomly as possible. And, don't be a dick and deprive somebody else of it if you can't use it.