1. Yes it is not exactly a BUG, but a missconfig which came from the default settings of IGCN. Admin knows about it and there will be a fix with new update.
2. About the case, NEZABUDKA doesn't abusing it like running all over the map and kill all with batfloc, Wicked attacking him and he is defending himself. Slayer can't be successful only with piercing attack, she needs batfloc, coz of the "BUG" it happens like oneshot. But it is not ABUSE, for this he won't get ban.
3. In this case I understand both sides. But here are some points which will change the scenario:
3.1 Wicked doesn't use SD pots in PvP and asking for "fair" for this PvP. It is not the situation where u can fight with others without SD pots, especially in Mastery set. Here I see only "trap" for NEZABUDKA to report him. But this also won't be the reason for ban. Even in war sides playing in fair way, not like fox.
3.2 NEZABUDKA willingly maxed the Energy stat which is not even a scratch useful for slayer (not counting some SD adding), which means he did it to make batflock more "useful" in PvP. Exactly this is abuse and will bring ban for him.
Result from all above
Case ACCEPTED!
Penalty: Block of account from 7 days