The best solution would not
require education, nor changes in behavior.
I (still) think you should
put your special installed plugins and features in _new_ folders, called
Then as people learned why
that was (if they ever did), they'd learn about P2 and other options they
could exercise. And, if they never did learn about it, then it must
not matter to them.
And before you claim "that's
just not possible" I'll say, "yeah, we've heard that before during
this week" :)