I believe that's because marboroza scares him very much. Actually, marlboroza scares me as well, although I never had any beef with him (and I pray to God to never have any)

Regarding gumusi's behavior, this is the classic baboon behavior, I thought you knew it. The same happens in topics opened by otomans like wolwoo, Vispilio, Cean, Blacknavy, DragonDance and others. They don't debate...they just hit and run. The same applies for some of their allies, such as peloso or hacker.