Yup, people tend to get too paranoid at times when it comes to Poke. I do that too but for me it comes to needing to check out IVs myself over believing if they're real or not. Besides, you're trading clones, no one's really losing out on anything. =P
Ah, I don't know myself but I got it from someone that went through their whole collection hack checking and it's legit. So, yea. Shouldn't matter who the OT is as long as you can say for sure it's legit.