What is the naming convention for Powershell functions with regard to upper/lower case usage?

Question

While I did find a lot of information on how to name Cmdlets and functions in the Cmdlet Development Guidelines I did not find any information on whether functions should be

Answer 1

A function is mostly a script-based cmdlet. A cmdlet is written in ex. C#, while a function is written as a script. Because of this similarity, I recommend using the same style as cmdlets for my "standalone-functions" so that it blends in with the other PowerShell cmdlets. Ex. I had a filecount(per folder)-function that I used often. I called it Get-FileCount.

However, I usually name helper functions(functions you only use in other functions) using a simpler name like convertsidtousername etc.

You could use aliases to create short names for a function.