I think it is in everyone's best interest to have as many users use the trunk version of the compiler as possible. The more users, the more of a workout the compiler gets, which means that more bugs will be caught during the development process instead of after the formal release.
The same is true of Lazarus (and likely any piece of software.)
Agreed. I understand why some would want to restrict access. But from my viewpoint restricting would be more detrimental to adoption (or re-adoption as was/is my case) of Pascal for some developers. I rely on features only in trunk. Had trunk been restricted that would have been a barrier to entry for me.
For me trunk has been very stable, and I've always been able to find easy workarounds when something does not work correctly or has stopped working correctly. And situations like that are the exception, not the norm.
And if my workarounds don't seem like they should be needed, I file a bug report, which I have no objections to doing.