It's not obvious to you because you don't post anything that is removed.
You never actually see censorship if you are not censored.
You never actually see censorship if you are not censored.
If he/she "doesn't see it because he's not beingu censored", as you seem to imply that perhaps you are, his question would then be very relevant:
You could enlighten them with evidence so that they can also see what is obvious to you.