I'm keeping my own opinions of it to this comment... The spam wave is troublesome and Captcha will slow down a little bit. While making noise about it is good, making it everyone's responsibility to peer pressure the developers into doing it seems like crossing the line to me.
Imho it would be better if people either held off on migration until it's implemented or have a fork of it that contains captcha features where there aren't existing protections (such as manual vetting).
I get that these things make the project better and viable but the repo maintainers aren't magicians and we should overall curb open-source entitlement to a reasonable level.