2/ There are more inauthentic accounts around these parts than there used to be, but it's not remotely close to what you're accustomed to dealing with on #Birdchan, FB, or IG. Updating your profile photo sends the signal that you're a real person- even if you're not using your real name. Posting a brief intro goes a long way, too.
That said, these actions are *totally optional* — don't let anyone guilt you into disclosing more personal info than you're comfortable sharing with a global audience