There are two extremes when it comes to deciding what Grade one has in an esoteric Order. One is severe training where a person spends years in a Grade and is tested to an inch of their life. The other extreme is where the only thing that matters is if they paid the dues and fees for the Grade. Both extremes result in getting a piece of paper that says you are of a particular Grade.
The same thing happens with Charters and Warrants. Just because a group has a Charter or Warrant, it does not mean that the holder(s) of it actually got any training to go along with it. In fact, it is more likely that they just paid some money to get it.
Therefore, in my opinion, it is best to treat those who brag about having Grade certificates and Charters and Warrants with caution. Watch their overall actions, and weigh their teachings--don't take those pieces of paper at face value. While an Adept can't help but be human, they also can't help being an Adept. If you watch carefully, a person's true level of attainment eventually rears its ugly head.