Haters Online.

If you've ever been on the internet, you've seen haters. Haters are the people who find it necessary to disagree with the topic at hand. Don't get me wrong, everyone's entitled to their own opinions, but haters channel their opinions through phrases such as follows:

"Wow, that's so stupid. Honestly you're an idiot for thinking that."

Instead of stating your opinion in a civilized way that wouldn't make people feel bad, it was obviously necessary for this person to put down the other person. A simple disagreement would've sufficed. 

Honestly, just ignore haters. Most of the time they just want to start something, or are plain jealous of you. If a hater is really getting to you, tell them that their tone was unnecessary and that they should think of the damage they are doing. Sending them on a guilt trip will make them hesitate next time they think of doing something like that again. If it still bothers you, use their words to your advantage. Strive to do better, and prove the hater wrong (but don't go to extremes, after all it's just a person.)