To be fair, doesn't bypassing paywalls kind of the defeat the purpose for these sites to be able to provide content without ads? Thus, ad driven content is the only way for them to keep the lights on.
The WashPo paywall is the worst -- it rewrites your address bar so you can't even bookmark the URL for later or copy/paste it to share. Really frustrating on mobile when you can be in an app that's not logged into WashPo. Why would the product team make that decision?