Modifying Signup with Tracking Code

I have a general question about the BuddyPress registration screen. I am starting to get asked questions by people about wrapping the registration screen with tracking code for Marketo or Salesforce or other lead management platforms.

I know that the registration function is heavily integrated into the core but has anyone developed a plugin or solution that allows users to wrap the registration form fields with tracking code that doesn't require the user to heavily edit the core?