I clarified this point. As I assumed earlier, this indicator is pretty good in their program. According to the company representative, the average account lifecycle is about 2 years for “Tier 1 Geos” that’s what they replied to me. As I've been told, there are different features , which help investors not to lose funds. For example, zuluguard. It is apparently a script , which changes trader in case he turns aside the strategy. Anyway, the thing is that investors don't wipe out their deposits and therefore stay long on the platform.