First time using Winetricks with Protontricks will ask if the user wants to help development by sending telemetry data. I believe that's annoying and that most users would disable it, so I propose to make it disabled by default for all users and so the question won't appear anymore.
To achieve that, the following file needs to be created after installation:
~/.var/app/com.github.Matoking.protontricks/cache/winetricks/track_usage
It should contain the following:
0
That's it.