(Ab)using identify()

Hi, I’d really like to hear community thoughts about the following. We’re implementing Amplitude through Segment in a SPA and we ran into an interesting question

We want every event that arrives to amplitude to have a property `product_capability` where the value describes the part of the product where the event fired from. In other words if a user navigates to the homepage and clicks on a button A and then on a button B there there we would capture this:

homepage viewed {product_capability:home}

button_a clicked {product_capability:home}

button_b clicked {product_capability:home}

if they then navigated to whatever page and clicked on 2 buttons there we would do this
 

whatever_page viewed {product_capability:whatever}

button_a clicked {product_capability:whatever}

button_b clicked {product_capability:whatever}

As you can see we’re adding product_capability as an event property to every event.

What would happen if we add that property as a user trait and then called identify() every time it changes. Implicitly amplitude events would have the correct product_capability value as long as the identify call arrives to amplitude before all other event calls 

This way we’d only add product_capability to our identify call and not all track() and page() call

This feels a weird approach because those are not user traits, however the way Amplitude associates implicitly user traits to events this could work.

I’d really like to hear, what are the pros and cons of this approach?

Thank you very much