Without even delving too much on the rights and/or wrongs of what he is claiming, what can be agreed upon is that Kruw is obsessed with several members. He probably feels it will boost his ego if he were to constantly challenge several of them and if he were to keep on attacking a member that has already left the forum because of long standing health conditions.
All the context is there for you, here's the direct quotes from o_e_l_e_o where he was using Chipmixer to scam Wasabi users: