People will always say dumb things on the internet. You could get into a flame war with them, but the better solution? A well placed sarcastic clapping GIF.
And you are in for a treat, because that is what we have archived for you today. All different shapes, sizes, and versions of people clapping to mock the ones you love to hate.
You can use this page as a resource for email threads, forum threads, and tumblr threads. Lots of threads. So sit back (seriously, find something else to do momentarily because this is going to take forever to load) and enjoy some clapping.