Just for future reference, as an example:

If I bought and downloaded a video product based on How To Create Multiple Niche Sites to Bring In Passive Income, made a video of my own and used the majority (~90%) of the techniques from the original video, what are the consequences, if any?

Just wondering, as I plan on making niche products in the future, and chances are I'll be borrowing some information from 'gurus'.

I'm assuming there's no problem to this as long as I don't use the same terminology or coined words, right?

Absolutely none. Chances are that he stole that shit word for word from someone else.

Actually, I would change the wording of the title. But there isn't he's going to do, and he definitely won't find you.