I guess this probably a feature request. I scrolled through all the FAQs and forum posts and didn't see this addressed specifically, so here goes.
Currently, the WordPress-to-lead plugin allows the admin to create multiple forms to be distributed across posts and pages as desired, but all of those WordPress-to-lead forms send leads to the same Salesforce account.
Would it be possible to link a single instance of the plugin to multiple Salesforce accounts? The desired use case would be for each WordPress-to-lead form to have a field to input the target Salesforce Organization ID. Then I could have one page with [salesforce form="01"] that would drive to one lead partner, and a completely separate page that has [salesforce form="02"] which would drive leads to a completely different lead partner. Each form would drive to a single Salesforce ID. In other words, there would not be a need to broadcast single leads to multiple Salesforce IDs.