Might even be able to simplify this further to two rules:

One: the best help for start-ups comes from proven leaders who don’t need cash from your seed capital and genuinely want to help ideas they believe in.

Two: Seek advice from people who are either successful founders or VCs, better yet, someone who has done both.

Not that the #2 in the post is wrong but that in seeking advisors:

1. NOT seeking cash (a job or consulting)
2. Have been there and done it first hand