[nefitty]

Maybe you could set up a public Slack room to discuss? I'm not involved in the bounty but it seems like a reasonable way to organize. Utilizing the search people could figure out whether anyone is working on what they're planning to do.

[Shamiq]

That could be a decent hack to get started. Ideally, I'd like for it to be a feature of hackerone et al, assuming security@ as a service providers become the point of interaction with the external security community.