The sole reason for that would be because I publish the blogs through laptop while obviously I take the pictures from mobile. So while writing the blog, when I have to include the pictures, I need to transfer them first to my laptop and that I do through Whatsapp Web. That is why you see most of the pictures in my blog downloaded from my Whatsapp. They are all mine and personally clicked though so I don't think so there's an issue. If there's one you know about, enlighten me.