I did hope for more, other ideas, but something is better than nothing at this point.
So just as an example, this is what I wrote into my profile right now:
You probably came to this profile, wondering about the avatar picture, or the strange user name. The intention behind that is to make you curious about a very import struggle that takes place on the Stack Exchange network right now!
To learn about the background, start here or there. And then, if you care, join the community in our struggle for a joint future!
- Update your username/avatar accordingly. Invite your friends on the Stack Exchange network to look into this, too.
- Spread the word. Just posting on meta often goes unheard. So: turn to Facebook, Twitter, your own blog, ... and let the world know what you think!
But please remember: above all, be nice. Be respectful.
Please note: I tried to get to a meaningful message that allows to read the "full" message without the need for scrolling (on a normal desktop browser window). On the other hand, "normal" desktop is really ambiguous, so my suggestion: order such bullet points according to the priority that you see for them!
Also note: you can change your profile text as often as you want, but a change to the username / avatar picture can only happen every 30 days!