I appreciate your input, Carleas.
Though I think that the number of dead in Gaza couldn’t possibly be that high, you are right that you don’t possess the means to verify whether the info is true or not. It’s also hard to ascertain whether Mr. A. is 100% sure the data are fake or not.
Besides, the line between free speech and conscious spread of misinformation is tenuous. I have to admit that I would prefer if all people would avoid misinformation like the plague, but it’s a kind of addiction in the internet nowadays, where most seem only interested in whatever bit of information that might fit their own narrative.