Just about anything can be construed as a policy
violation if an admin
wishes it to be so. Our plethora of policies with plenty of weasel wording
even inside the policy explanations is ample fodder for that, nevermind that
even if we had copper-fastened perfectly-written entirely self-consistent
immutable policy, it would still be open to individual interpretation.
That is, of course, entirely by design. It's even written out
explicitly on WP:IAR.
The problem is unfortunately far greater than
individual rights or wrongs,
or even the general behaviour and conduct of editors and/or admins.
I disagree. The problem is entirely to do with user conduct. The
policies are built on the basis of trust - we trust users (including
admins) to interpret them in a way that is beneficial to the project
and give sufficient leeway to allow policies to be moulded to fit each
situation. It's when that trust is misplaced that we have a problem.
When it's a fairly new user that isn't trustworthy, it is easy to
force a better interpretation on them, with blocks if necessary. When
more established users, especially admins, interpret policy in a way
that is harmful to the project (which is, of course, a matter of
interpretation in itself) we have a more serious problem, and one we
are not particularly good at resolving.