All,
Chaim has discussed Revava many times in the Ask JTF show. HaIvri (HaOmo) is a Shabak agent who has made several attempts to infiltrate Kahanist organizations. He hates Yekutiel because Yekutiel is a sincere guy (even if he is petty). As a Shabak officer, his goal is to put a stop to Kahanist organizing and training (hence his reporting of the dog-training program).
Along with other Shabak agents, HaIvri started his very own organization in 2004 (Shabak), whose goal is to siphon off and deceive as many eager young Kahanist youths as possible. To that end, HaIvri loads his site with bogus articles in praise of the late Rav and claiming that Israeli police constantly raid Revava offices.