Watching and proudly admitting to be watching Porn has become quite public nowadays as compared to when we were young..

Probably because with the internet, everyone saw how common porn is. Before that, I'm guessing you could only find porn in certain sections of small stores, so there was this impression that only a tiny minority was degenerate enough to watch porn, so you better not let anyone know you're part of that minority. Whereas now, if someone claims they don't watch porn, it's like being the one person on Earth who doesn't listen to music.