Mostly I don't. Nearing my 7th decade, I have spent most of my adult life seeking convergence of my private and public self. It's one reason that since the early 90s I have used my initials as my username everywhere.
I highly value privacy but have no need of anonymity, though I understand it's life or death for too many.
And I don't mean I would be the same around a stranger as I am my wife of 35 years. I mean I would be my honest, authentic self for each context. Twitter or nestr, Facebook or Reddit, church or mall, my hometown USA or Berlin.
I rarely comment here because I rarely have any value to add.