You say you need a hint for this week’s Lync Server PowerShell challenge? Then you should do what the creators of that challenge do any time they need help with something (and for anything, not just the challenge): they ask their moms.
But on the off-chance that your mom isn’t as up on Lync Server PowerShell as she should be, you could always ask William Shakespeare instead:
What's in a name? That which we call a rose
By any other name would smell as sweet.
Which, by the way, comes from Romeo and Juliet. Or at least we think it comes from Romeo and Juliet. We’ll go ask our moms and then get back to you on that.