I obviously haven't conveyed how I feel about it very well at all - I haven't changed my own profile on facebook, I hate 'virtue signalling'. I feel huge sympathy for those suffering for the dreadful atrocities all over the world, and actually there is no other flag provided by facebook that I am aware of. I was just astonished by the overwhelming amount of visible support and coverage for France. Even quite small towns around here are lighting up their buildings in red, white and blue. Seeing that in my local news item on tv, my first thought was - why didn't they do that for, say, Egypt? Or Kenya? That was what prompted the OP. It was all one big guilt trip, they felt they had to, it was stated that the decision to do so had only been made by local councillors very early yesterday morning.
My own impression is that it was all done out of fear of it coming closer, nothing more. I think it is a huge show of bravado, to show unity. When the bombs are further away, we can pretend it isn't happening for just a bit longer. I just wanted to know what everyone else thought.