We do prefer people to build themselves, it increases their knowledge.
On the other hand, some people will never go to the bother of setting up and compiling. And some people have problems with their system and just can't get it to compile.
Normally only the developers and flight test team run next because it hasn't been extensively tested. This is an unusual situation where features (mainly external mag and DJI gps support) were added that people want enough to run what's essentially beta software. All the developers run next so there are no known problems to stop others from running it.
You're welcome to post links to your builds.
edit: I've merged the two threads into one.