Haven't logging to Deviant in a long time. Google warned me about a compromised password. I got to the security section to change it and find that I have to PAY to get 2FA.
The crappy design here is that this is called Core. Core implies it's a central or fundamental feature. I wouldn't consider that as part of a paid upgrade path.
i have an email account that i'm not receiving valid 2fa emails which are sent to me. to add the sender email address(es) to a white list in order to bypass server-side mail filters (which are blocking these emails from reaching my inbox), i have to pay and subscribe to unlock the feature.
at the one service i care about, to change its email to a different email address, i have to be able to receive those 2fa emails and validate a code to authorize the change.