I've recently purchased IPVanish subscription due to the concern of NSA snooping.
My home network is set up like following
Computers => Router => ISP Modem (Spectrum)
Now I am worried that ISP would monitor my traffic since all my internet goes through ISPs modem first.
Suppose that I am browsing a website after connecting to a VPN and post a message on ISPs website. Can't Spectrum figure out that it was "I" who posted the message by comparing VPN IP and my outbound packets going through ISPs modem?