People get passionate about things they care about and 34,000 people care about KiA. It is natural to give feedback – for example about the new layout.
As it happens I like the layout. I do have feedback for tweaks given in the appropriate thread. I also agree that as the community grows KiA will need sub and sibling forums like /r/SocialJusticeInAction and will need to reach out to like minded groups. If we reach 100,000 we are not going to coordinate all those people on a single subreddit.
When people are tempted to bitch they should remember part of the reason they care about KiA is that the moderator team have already done a really good job.