It seems that script has made all of this very simple now days. Not even a need for /pm.
/support is perfect - as it goes to all online administration...
/h is still there, and has never gone away. Often many plays can answer the questions you feel the need to ask admins about.
And if despite all this, you still feel the need to use /pm. Think hard, and put yourself in our shoes, there is most likely another 2-3 PM's either side of your PM.