If you have 75k members, yeah you have to tell folks this because inevitably someone will make a poor choice and someone might try to use some random teachers vacation photos to make an argument.
And it wouldn't really be a gotcha story if they did bring vacation photos up. It would shed light on the fact that these teachers are being paid their full, regular salary while also refusing to go to work.
Not that I am against their right to strike or not go to work if they feel it is unsafe. But there is definitely a perverse incentive created here where teachers will still get paid a full salary whether they go in to work or not.