Their community is a bit of a mixed bag. There are definitely some good people in there that help users fix problems, but I've seen the open hostility you're referring to as well, in my case I got posts about the progress of Android on the RPi removed by a moderator of their forums. If you go to the RPi forums now you'll find that the Android subforum has broken CSS. I have a PM from a mod indicating this was an intentional decision.
If they're so concerned about protecting their mission, I don't see why they encourage use of Kodi (well I do understand it, it sells boards, but Android support could be a good selling point too).
Woah woah, hold up a second here. It sounds like you're saying that someone who has sufficient enough access to change the html code on the Android sub-section of the RPi official forums has intentionally broken the display rendering because they... just don't want to deal with it? or, are tired of people asking about Android on the Pi(s)?
Edit: by blindly clicking around I found a post from a Foundation member that said they were locking the forum. Dated mid-March 2015, so i guess the css wouldn't matter anyway
As I said, I have proof via a PM from a forum mod that the CSS on that subforum was intentionally broken (it'd be easy to fix). The aim was to discourage any discussion of Android on the Raspberry Pi, as they saw it as going against the aims of the Raspberry Pi Foundation (the suggestion being that if students had access to Android they'd mostly use it with Android). There were three parts to blocking those discussions. First was to lock the Android subforum. Second was to mess up the CSS on that subforum so it was harder to use as an archive. Third was to lock/remove threads across all forums (including General Discussion) that were about Android on RPi.
If you don't believe me, try posting a thread on the Raspberry Pi General Discussion subforum about some recent Android on the Raspberry Pi progress:
It's not that I don't believe you, the questions were genuine, it's just that it seems like an extreme solution to do in a behind-closed-doors, almost underhanded, fashion. I was under the impression that it was a supposed "open" hardware platform geared towards education and enabling kids to get into low-level computing. Android is incredibly popular among that demographic, and if they want to use the Pi to create things for Android, why stop them?
https://www.raspberrypi.org/forums/viewforum.php?f=73
If they're so concerned about protecting their mission, I don't see why they encourage use of Kodi (well I do understand it, it sells boards, but Android support could be a good selling point too).