There is a saying that small minds talk about people. Great minds talk about ideas.
It's a sad state of affairs when the current level of debate on this topic on this site and also on the Serverside which also posted the JBoss interview focuses on the personality of the founder and lead developer and not the issues behind JBoss and their desire for certification.
What is distasteful about this virulent criticism of an individual, flawed certainly (but how many worthy projects are not founded by and championed by flawed individuals) is that none of it appears to come from Marc's peers--the other handful of individuals in this world who write or make significant contributions to app server software in their spare time.
The answers to your two of your critical points which are rather obvious to those with an agenda beyond casting stones, is that 1) it is possible that JBoss didn't have the money before and does now to pay for certification 2) if you knew the first thing about Open Source and the LGPL license, it is impossible for anybody "to destroy JBoss by making it private." -- so next time you are worried about this phenomena you are free to brush up on EJB container architecture and make a significant contribution to this community instead of whining about those who do.