I think it's quite reasonable to suggest power users to use such a specific version. Especially as the signing is presumably to prevent non-power users from get

I think it's quite reasonable to suggest power users to use such a specific version. Especially as the signing is presumably to prevent non-power users from getting malicious ones, which is a real problem. As you admit, the Developer edition is very stable and from the name targeted at exactly the kind of people that want to run their custom extensions. It's not like Minefield nightlies back in the day!