So rather than clarify the new Twitter Policies, it would be more interesting to be told why they are making these changes.

Everyone is assuming it's because they want to lock down their platform... & lock it down along what seem pretty moveable and arbitrary lines. Why else would they do it? I'm a casual observer, but I have been following pretty carefully, and it's completely unclear to me.

So -- If it's not, they should just say. If it is, the Twitter developer ecosystem has plenty of reason to be worried about their homework.