I have always thought it would be a fun and inspiring project to deploy a global CDN ... my career and my lifelong hobby have both been "UNIX sysadmin" and I love running networks ...

However, I spoke about this to some ISP/NANOG folks that I trust and they said that running a real CDN is a nightmare because all of your links (providers) hate you ... you're producing the exact opposite of the traffic that they want and they will not give you any breaks or help or benefits since you are their worst customer.

How accurate was that assessment ?