gems is the number 1 reason for getting a ban ... after tht is speed if caught by a dev ingame ... (whn blessing and stuff ) ..
for me i've been using the mod ( all features on /speed and gems off ) for two weeks no ban (0.0.1/0.0.2)
-safe : dmg only
-risky ; vip / no ads
-NOT safe : gems / gold / spd