Surely, there ought to be objective criteria, and I suspect a lot of people don’t know what they are (and where they are).
In practical terms, a DL-er lifting below 2.5 times BW is a beginner or intermediate?
How do you define level in kettlebell training? If you clear the ROP, you are an advanced student? How do you become an expert? When you pass the cert? Or if you put in x hours of training and do 100,000 swings?
You can do 20 burpees: are you a beginner? And why??