I'm not sure if there's a better place to report bugs or not.
Method:New does not filter out "App Specific" Activity types in the dropdowns in the Activity App. As a result, all S&I related Activities are listed in the dropdown.
Thanks for reporting this one - I'll make sure to bring it up with our product team for a future iteration of the screens.
All the 'List' screen Views are filtering out the App Specific Activity Types, so it would be good to keep the consistency.