Following ideas put up by others, I changed my nickname and profile information to inform potential readers of my content on "other" network sites about the ongoing struggle.
Right now, my profile says something like:
I hope you're wondering about my avatar picture, and the strange username.
The idea is to get you curious. About this:
Firing mods and forced relicensing: is Stack Exchange still interested in cooperating with the community?
Now: if you do care: consider joining us in the struggle for our future!
Sure, that will probably help others to figure "something is going on".
But I think: without a neat "call to action", such profiles won't be causing much difference.
Thus: what would be create but legit action requests we could put into our profiles?
I mean: things we suggest the readers (users) to do! (besides changing their nick name and profiles, too)