these are people who post videos on YT all the time and they get sent a drone to review by DJI before release, so that they can have something to show on the official release day, they are also beta testers in a way and work closely with DJI, unfortunately this means that sometimes their reviews can be a little biased, not pointing any fingers there but most of them tend to paint a rosy picture of the product and some of the stuff they say has to be taken with a pinch of salt these are just my views and if anyone is offended by them i apologize ahead of time