While I don't wholeheartedly agree with the honeypot allegation, I do agree that you should take most VPN providers with a grain of salt, be it that they are in fact a honeypot, occasionally leak data, or do shady things like actually inspect traffic.

An additional use, and the one I use VPNs for from time to time, is to throw off ad-network information and avoid over-disclosing information about myself.