Dutch Uncle
* Tertia Optio * Defend the Constitution
Some posters use anonymity to create Rambo versions of themselves. There was a former Iraq War-supporting Chickenhawk poster here who claimed to have been hired by Department of Defense to work as a contractor in Baghdad's green zone, and he regaled us with tales of dodging insurgents and IEDs.
LOL I've run into a few copypasta vets online. Most vets love to cut them down to size.
Harder to detect is someone who actually served but highly exaggerates their role such as a clerk typist at Baghdad HQ claiming to be an operator. They know the lingo, have talked to the actual people and may even has seen results of an attack.