Discerning "real" experts on the internet from fake ones can be tough, but rest assured these guys know what they're talking about.

One of the great things about Reddit, and the internet as a whole, is that you're always just a few clicks away from learning a new bit of information. But in recent years, it's gotten harder and harder to discern fact from fiction, and experts from frauds; especially on anonymous forums. How can you tell a helpful knowledgeable samaritan from a misleading troll? Well, when an expert starts speaking on their topic, you just know, and these 28 guys "this guy" their thing. 

"This guy blanks" is a phrase that means, "this guy is a first-hand expert at what they do." For example, one guy here perfectly describes how a rock becomes a boulder. That guy rocks. Someone else can tell the hotel chain just from its key card. That guy hotels. And best of all, one dude knows the best music to play when the lights dim and things get hot and steamy. That guy.... well you know. Here are 28 guys who know what the heck they're talking about, and make the internet a more helpful place.