The Internet is an unpredictable place, one second everyone is mourning the loss of individuals in a terrorist activity, and the other second someone is being bashed on for making a small error as a host, poor Harvey. Why is someone being destroyed by the media? I don't know, maybe there is just nothing else for them to be doing. As soon as one thing begins to trend, people without a single thought just go along with it. Making fun of people is so fun right? Half of the individuals who made memes about Harvey didn't even watch Miss Universe! They didn't see Harvey's apologetic tweets either, which if you did, you'd feed a little bad for making fun of him for a small mistake. The main point I am trying to make is that ignorance floods the internet. During the massive lottery, there were half a million people who actually believed that the lottery would give everyone four million dollars.
To answer the main question, after my small rant, we have to be very careful on the internet. No matter how popular or unpopular you claim to be, things spread fast from one person to another. Before posting something or commenting something stupid, think about what you are doing. The friends you hang out with could accidentally put you on blast, you know, by sharing... All in all please be careful out there, and think before you do something, there are a bunch of ignorant people sitting at home impatiently waiting for the next person to make fun of.