(I can't find the words to describe how much I don't give a jay' about the "not using {-vIp} with first-person prefix unless there's a {-be'}" rule).

Well, think about it. The taboo doesn't say "don't use -vIp with a first-person prefix unless there's a -be' on it." The rule actually states, "This suffix is rarely used with a prefix meaning I or we. Though it is grammatically correct, it is culturally taboo."

I don't care how (inappropriately) literally anyone wants to read that, the obvious point of the taboo is to not admit fear. If you want to say pagh latlh be' ghop wIbamvIp, you're not admitting fear; you're denying fear.

-- 
SuStel
http://trimboli.name