I guess by travel hacking you mean sign up using your credit card links?
I don't think I could even send a beginner here. I randomly pulled up a guide for Lima and saw no useful information. Since you asked for feedback... it reminds me too much of The Points Guy. He features different cities and talks about how you can use miles and points to stay there.. but has no "inside" or "local" information. It's as if you started a template for an entry but didn't have the experience to fill it out.
The voice over in the video on the main page needs a better mic to make it higher quality. Your page is also lacking original content. Where are your own personal trip photos? Once again... it's TPG move to use stock photos.
I'm curious... what's your original Flyertalk username?