I always try to read up on the authors background to frame what they are saying. I do think it is useful to hear from people as they are going through the proc

I always try to read up on the authors background to frame what they are saying. I do think it is useful to hear from people as they are going through the process, meaning I don't require that they have "made it" to trust their advice. I think there are four levels I group most people into: 1) Never done it and not doing it now. The lowest credibility level. 2) Doing it now, but not full-time. Potential for good advice but not really in the position to make grand statements. 3) Doing it and making a good living. The best people to listen to. 4) Did it and exited. Sometimes great people, other times they have been out too long and don't remember what it's like. (or built their company in a different time)