Anyone can create a poll, so if you yourself, as a developer, want to gauge interest just create a poll post and do it yourself for the devices you are trying to prioritize.
But in other cases it may just be a matter of a developer happening to have the same device or having a particular interest in a particular device, so I don’t think all the requests should be evaluated on the basis of community interest. Also, I’d be concerned that US requests would dominate a general poll just because of population size.
So I think it’s up to each developer to decide for themselves what they’d like to work on, if anything. If a poll helps you do that, go for it. 
Just say something like “I’d like to prioritize which edge driver I work on next. If you have an interest in any of the following, please vote for it.“
