Are similar things planned for those of us who find Twitter repugnant
and refuse to use it?
Not on my end! It's a common practice to do events like this on
Twitter. I also have brainstormed doing something similar on
Facebook.
I encourage volunteers in the Collaborative and in the Wikimedia
movement to do events on their own. I'm limited with my time as I
step back into volunteer mode in a few weeks :) So, I'll be doing it
when I have free time. If you've got an idea - go for it! :)