UMNO- self-induced rigor mortis

I have written so many essays critical of UMNO in the past. Friends asked me why am I still in UMNO? How can I write many nasty things about UMNO and seemed to get away with it-why haven't I been hauled up by the UMNO disciplinary committee or something and not ticked off? Isn't there anything good that UMNO has done? Let's clear one thing first. This is the source of many of UMNO's problems.