Yes, so people could see my original submission. Then I've explained the purpose of the forward when asked, I don't see any problem with that.

The way that you jumped straight onto broadcasting drama

I'm not broadcasting drama, I'm sharing my side of the story on my personal blog and distribute it to other social media platforms.

your very first Linux kernel patch stumbled on the code review stage

The patch didn't stumble on the code review stage, the PowerPC maintainer didn't want to accept patches from me and implemented his own fix.

I would hate to work with you because I would feel that I would be risking being subjected to a very public character attack each time I had to review one of your patches.

Why would you hate people who would describe their interactions with you? The only reason I see is that you would hate how you've dealt with them.

Between the initial patch and the maintainer's patch there was a private conversation between me and the maintainer (I don't have access to it because I've used my work email and since then I switched companies). I posted my reworked patch only for visibility, since by then they have accepted the maintainer's patch. But I sent the reworked patch in private to the PowerPC maintainer, before sending it to the powerpc mailing list.