> capitalisation is just unimportant

Capitalization is the difference between:

  - helping your friend Jack off a horse, and
  - helping your friend jack off a horse.

(Not original, but memorable!)

>capitalisation is just unimportant. Signing off emails with "best wishes" is not a good use of anyone's 500 milliseconds

Yet I'm on Twitter reading "Prison for attempted murderer enablers like this clown" by the world's richest man who is tweeting all day. My guess is that it has just become a way of status signalling more than anything else.