If we don't do sales stuff in NetSuite (we use Salesforce and import invoices in NetSuite for billing) is there any significant risk to uninstalling the Last Sales Activity bundle. It looks like this is just a bundle they automatically throw into every customer's account and it's not anything we need, but the SuiteAnswers documentation is pretty sparse.

I uninstall it on all of my accounts where NS CRM is not used, not harm done, this bundle is thrown in with every NS instance, and your -5 user is the “installer”.

I have done that in the past too

Awesome! Appreciate the gut check validation.