In both cases I was not the original creator but was a longstanding moderator who inherited an active community.
> did you bring the moderators on board with your business plan?
They brought me on board with theirs.
> how did the users react when you killed the community?
Positively. Reddit as a corporation isn't actually well-liked by the majority of the community. Poor administration policies, poor design changes, slow UI - there's a lot to complain about.
There were, of course, a few who loudly complained. But there will be a few who loudly complain about any change or no change at all.