Is it really difficult to understand the motivation? Because the obvious one makes perfect sense: they are aware of the huge number of historical examples of pyramid and ponzi schemes that look exactly like a lot of behaviour on display around the DAO. People naturally fall for these, humans love them, so the only protection is for good actors to go on the offensive.

I also find the DAO interesting and am watching the experiment, but I'm pretty pessimistic given how even obviously predatory schemes get embraced by the community and attempts to out them get responses similar to yours ("Excuse me, but since there is no possible way anything is wrong with anything DAO related you are either misinformed or part of an anti-DAO conspiracy").