That makes sense. Personally, I think you get that type if communication for a few reasons. One, I think a lot of people think they are better, and more well liked than they are. Of those emails you got, I'll bet there are a few players who would make great staff players, and would be worth the investment. Majority though, I assume are searching for a handout.
One suggestion that I have for you is select your staff once per year, stating clearly on the site that your application will not be considered if it isn't received in the pre-determined time frame for applications. On the standard application that you have staff hopefuls complete, you can make sure that whatever issue is most important to you is addressed. "How will you drive equipment sales in your area?" Stuff like that.
It seems that would put the control back into your hands, limiting the number of emails you receive, and also giving you the opportunity to have the hopefuls answer the questions that are most important to you.
I've yet to throw any Radical equipment personally, partly because I haven't seen any being thrown in my area, but seeing you ask questions and get feedback from us on here is definitely a plus. I appreciate open communication with the customers. For that, thank you.
Matt