I wonder if you're posting about our "real" identities, as they're understood by our immediate family, in-person friends, colleagues, banks, and governments; or online interactions in general, even when some form of anonymity provides some distance?
I'm definitely more hesitant these days to associate my "real" identity with my online identity. Easy example is I only access HN through a VPN and a pseudonym. I'm mentally prepared for the day that this account will be de-anonymised, and I don't post anything too crazy under this name against that day. Still, I'd prefer to keep a separation, and I'd probably start a new account if that's what it takes to retain anonymity.
None of this should come as a surprise. McLuhan predicted from the mid-20th century that we would end up with a global small-town mentality. The "global village" wasn't a platitude, it was a warning.