> Do social media workers have some kind of strategy for managing their public and private identities?

Got me, I'm a social media refusenik. I have only encountered one third party application for work that was lazy and broken enough to require FB login, and I made up a throwaway account specifically for it. (I also had to remove all the 127.0.0.1 entries for FB names in /etc/hosts, but that's different.)

Does doing that feel disingenuous to you because of Facebook's expectations, or a different reason?

(I personally have zero problems with lying to FB, given that FB routinely and consistently lies to the rest of the world in order to decrease others' ability to not do business with them.)

I have three email addresses not counting my work email. It’s me for professional stuff, a private one, and a junk one for accounts and mailing lists. (Ironically, only my professional one gets spam.)

Not counting work, I guess have three or four Google accounts. (Ironically, none of them are gmail.)

Frankly, I never use the social media sign ons if I can avoid it.

I use a wildcard email forwarder on my domain, it lets me easily look like different people while using the same inbox.