It's a shame you had to bring this down but it looks like you saw it coming and enjoyed the ride. I think the posts that characterize you as unethical are just not willing to cope with the disillusion that technology is a two sided coin. The information was there and you used it. I commend you on seizing on the opportunity and wish you best of luck in the future.
Sorry, no. Technology is a two sided coin, mostly unable to be ethical or unethical. The people using technology, however, are surely able to fall somewhere in the spectrum. The OP is using this technology for (imo obviously) unethical reasons and is capable of being judged by that decision.